Pericardial cavity,Pericardial sac,Fibrous layer,serous layer, Myocardium,Endocardium,Epicardium these are the following parts of the pericardium and the heart walls from top.
The heart and the roots of the great vessels are contained within the pericardium, also known as the pericardial sac. It consists of two layers: a serous membrane-covered inner layer and a fibrous pericardium-covered outer layer (serous pericardium). It defines the middle mediastinum and encloses the pericardial cavity, which is filled with pericardial fluid[2]. It keeps the heart free from interference from other organs, shields it from infection and stress, and lubricates the beats of the heart. A robust fibroelastic sac called the pericardium surrounds the heart on all sides, with the exception of the bottom and the cardiac root, where the major arteries join the heart (where only the serous pericardium exists to cover the upper surface of the central tendon of diaphragm).
Complete question:correctly label the following parts of the pericardium and the heart walls.
Pariental pleura,Myocardium,Fibrous layer,Epicardium,Pericardial sac,Pleural cavity,visceral pleura,pericardial cavity,Endocardium,serous layer.
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which types of glial cells are found in the central nervous system?-astrocytes-microglial cells-ependymal cells-oligodendrocytes
There are three types of glial cells in mature central nervous system: astrocytes, oligodendrocytes, and microglial cells
what are oligodendrocytes?
Oligodendrocytes are myelinating cells of the central nervous system (CNS). They are the end product of a cell lineage which has to undergo a complex and precisely timed program of proliferation, migration, differentiation, and myelination to finally produce the insulating sheath of axons.
In central nervous system (CNS), oligodendrocytes assemble myelin, a multilayered sheath of membrane, spirally wrapped around axonal segments and best known for its role in enabling fast saltatory impulse propagation
Oligodendrocytes or oligodendroglia, are type of neuroglia whose main functions are to provide support and insulation to axons in the central nervous system of jawed vertebrates, equivalent to the function performed by Schwann cells in the peripheral nervous system.
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what role does density separation play in the sullivan mine ?
Answer:
Density separation is used in the Sullivan Mine to separate different minerals based on their density. This process is done by taking advantage of the differences in specific gravity between the minerals. This process, also known as gravity separation, is used to separate the lighter, less dense minerals from the heavier, denser minerals. This method of separation is used to increase efficiency and reduce waste.
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What allows communication between the cytoplasm of adjacent cells?.
Gap junction allows interaction between the cytoplasm of nearby cells. Therefore, the required answer is gap junction.
Specialized intercellular connections known as gap junctions connect a variety of animal cell types. They connect two cells' cytoplasms directly, allowing different chemicals, ions, and electrical impulses to travel through a controlled gate between cells. In plants, plasmodesmata perform this function.
Communication junctions, macula communicators, and nexuses are other names for gap junctions. Therefore gap junction helps in direct molecular transport between two cells.
For instance, electrical current is produced by the movement of inorganic salts in cardiac muscle cells with the help of a gap junction. If the cells are linked, they will share this electrical current, allowing every cell in the tissue to contract at the same time.
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where does the cellulose wall form in the parent cell
The cellulose that makes up the structure is mostly deposited in the thecal plates. The primary and secondary cell walls typically make up plant cell walls.
After cytokinesis, the primary cell wall is made, while the secondary cell wall is made when differentiation starts and growth stops.
Where is the cellulose wall created?The plant cell wall is made up of microfibrils, which are bundles of polysaccharide that are arranged in microfibrils. Cellulose chains are arranged in microfibrils.
In the parent cell, where does the cell plate originate?Between the two sets of diploid chromosomes in the parent cell, a cell plate is deposited. In anaphase, this begins. The production of this wall from vesicles is controlled by the mitotic spindle, which is located within the phragmoplast.
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Chromosomes are doubled I what part of the cell cycle
Chromosomes are doubled in the S phase (synthesis phase) of the cell cycle. During the S phase, the DNA of the chromosomes is replicated, resulting in the formation of identical copies of each chromosome, or sister chromatids. These sister chromatids are joined at a central point called the centromere. After replication is complete, the cell has twice the amount of DNA as it did before replication, and each chromosome is composed of two identical sister chromatids. This process of DNA replication is critical for the cell to be able to divide and produce two identical daughter cells, each with the same genetic information as the parent cell.
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In other to maintain a high level of performance, the type of food which athlete should eat right before a race is the one which is high in starch as it provides the required energy needed for the activity.Performing exercises will help an athlete increase cellular respiration.What is Exercise?This is referred to as a type of physical activity which helps to keep an individual fit and improve the general well being of an individual.
When exercises are done, the body demands more energy and the cells demand more oxygen which helps in the release of the energy in the body.
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All of the processes associated with obtaining and processing food, using absorbed nutrients to generate cellular energy, and the elimination of waste, are all described by the term -----------, which includes all of the life-supporting chemical reactions that cells perform
The term that describes all of the processes associated with obtaining and processing food, using absorbed nutrients to generate cellular energy, and eliminating of waste is metabolism.
Metabolism includes all of the life-supporting chemical reactions that cells perform. These reactions can be divided into two main categories:
Catabolism is the process of breaking down molecules to release energy, and anabolism is the process of using energy to build molecules.
Catabolic reactions include the breakdown of carbohydrates, lipids, and proteins to release energy. Anabolic reactions include synthesizing molecules such as nucleic acids, proteins, and lipids.
The energy released during catabolism is used to drive the anabolic reactions.
In conclusion, metabolism is a vital process that enables cells to obtain and process food, generate cellular energy, and eliminate waste.
It includes all of the life-supporting chemical reactions that cells perform, such as catabolism and anabolism, which are essential for the survival and growth of organisms.
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How do we transport molecules to and from body cells?
Answer:
Carrier proteins bind specific molecules to be transported on one side of the membrane. They then undergo conformational changes that allow the molecule to pass through the membrane and be released on the other side.
We can transport molecules to and from body cells by the process of diffusion.
Diffusion is a process in which molecules can move into or out of cells. All cells are enclosed by a cell membrane which is selectively permeable. Cells can gain or lose water by osmosis.
Passive and active transport are two ways in which molecules are transported. The passive transport methods are simple diffusion, facilitated diffusion osmosis.
These rely on the natural kinetic energy of molecules. Active transport requires energy in the form of ATP (adenosine triphosphate). It is a molecule that carries energy within cells.
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What are the most important animals of the food web? Name them and categorize them. At least 15 animals.
The most important animals of the food web can be categorized into several groups:
1. Primary Consumers: These animals are herbivores that eat plants. Examples include rabbits, deer, elephants, and kangaroos.
What are the food web?They includes:
Secondary Consumers: These animals are carnivores that eat herbivores. Examples include lions, snakes, and birds of prey.Tertiary Consumers: These animals are carnivores that eat other carnivores. Examples include crocodiles, sharks and big cats such as tigers and leopards.Lastly, Decomposers: These animals break down dead plant and animal material, and recycle nutrients back into the ecosystem. Examples include bacteria, fungi, and insects such as beetles and worms. etc.
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which of these would be an effect of an excess of thyroid hormones?
The correct option is A ; Would release less TRH. To produce T4 and T3, your thyroid need proper levels of iodine, which is obtained through meals. A feedback loop regulates this hormone chain reaction, so that as T3 and T4 levels rise, they limit TRH release (and thus TSH).
Hyperthyroidism, also known as overactive thyroid, is a disorder in which your thyroid produces and releases excessive amounts of thyroid hormone. This disorder can cause your metabolism to accelerate. Hyperthyroidism symptoms include a quick heartbeat, weight loss, increased appetite, and anxiety. Hyperthyroidism occurs when the thyroid gland produces an excessive amount of thyroid hormone. This disorder is also known as hyperactive thyroid. Hyperthyroidism causes the body's metabolism to accelerate.
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Full Question ;
Which of these would be an effect of an excess of thyroid hormones?
The thyroid would swell and produce a goiter.
More thyroid hormone would be produced.
A would release less TRH.
B would release more TSH.
Explain why tree root in upland foret are deeper than thoe in other foret, uch a bottomland foret. (pg. 2)
Similar to how a buttress on a fort would support the fort's walls, the tree's "above-ground" roots aid in stabilising and supporting it.
Why do trees have long and deep roots?Tree roots must be deep enough to stay moist and out of the sun, but they must also be shallow enough to take in enough oxygen.Plants are often adaptive, and those with deeper roots will benefit more. The depths of tree and plant roots vary with the temperature, soil, and water conditions, including groundwater levels and rainwater infiltration.Tree roots frequently develop close to the earth surface in order to access the nutrients they require to flourish because the soil in many rainforests might be deficient.The spread-out roots of trees allow them to absorb water and minerals from the soil. These anchor the plant firmly in the soil and are necessary for plants to grow.To learn more about roots refer to:
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the needs of what nutrition component may be significantly different for athletes in training compared to lightly active individuals in the general population?
Diet of Athletes must include high Calories obtained from carbohydrate sources and water.
Athletes require Energy giving food like carbohydrates more in their diet. Calories are required for performing work and to produce ATP( Adenosine Triphosphate) the main source is Glucose. For an Athlete the ideal diet consists of 60-65% carbohydrates and remaining include fat and proteins. Vigorous physical activity and exercise require more amount of calories.
Water is an important component in the diet of athletes. They should always stay well hydrated and energetic. Athletes should also include an adequate amount of protein in their diet which is essential for metabolism repair and growth of muscles, but the amount of protein must be less compared to a body builder and the major part of the diet should be rich in calories.
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Moving a limb away from the midline or median plane of the body. Terminology also applies to the fanning movement of the fingers or toes when they are spread apart called--
Moving a limb away from the midline or median plane of the body. Terminology also applies to the fanning movement of the fingers or toes when they are spread apart called Abduction.
What is abduction?
In science, abduction is a way of reasoning that involves looking at data and coming up with an explanatory hypothesis or theory. It is often used in the scientific process to develop hypotheses from observations. Abduction is an important part of the scientific method and is often used in fields such as biology, chemistry, and psychology.
Therefore, Terminology also applies to the fanning movement of the fingers or toes when they are spread apart called Abduction.
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Which of the following are the regulatory protein in the muscle contraction?a. troponin and tropomyosinb. troponin and actinc. myosin and tropomyosind. actin and tropomyosin
Myosin and tropomyosin are the regulatory protein in the muscle contraction.
What is myosin?Myosin is a type of mechanoreceptor protein found in muscle cells. It works as a motor protein and functions to produce force and motion. The protein, when bound to ATP, binds to actin filaments, which then produces a power stroke, allowing for muscle contraction and movement. Myosin is a vital component of the muscle contraction process, allowing for efficient muscle movement, and thus overall body movement. Myosin is also found in other cell types, such as non-muscle cells, and is responsible for other cellular functions, such as cell division and intracellular transport.
Myosin and tropomyosin are two regulatory proteins that work together to control muscle contraction. Myosin is an ATP-dependent motor protein that binds to actin and pulls it, causing the muscle to contract. Tropomyosin is a protein that binds to actin and prevents it from binding to myosin until the muscle is stimulated to contract. Together, myosin and tropomyosin are responsible for controlling muscle contraction.
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The correct option is A)
troponin and tropomyosinb
What is troponin and tropomyosinb?
While troponin and tropomyosin are regulatory proteins that control the relationship between actin and myosin, actin and myosin are the contractile proteins that interact with each other to cause contraction.
Sarcomeres are the structural units of striated muscle that house myofilaments (actin and myosin).
Consequently, the regulating proteins for muscle contraction are troponin and tropomyosin.
In muscle tissue, troponin is located in the groove between actin filaments and is connected to the protein tropomyosin. Tropomyosin obstructs the myosin crossbridge's attachment site in a relaxed muscle, limiting contraction. For contraction to happen, tropomyosin needs to be removed from this attachment.
Therefore, "Troponin and tropomyosin" is the right response.
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Which of the following are the regulatory protein in the muscle contraction?
a. troponin and tropomyosinb.
b.troponin and actinc.
c.myosin and tropomyosind
d.actin and tropomyosin
What are the 4 large scale mutations?.
The four different types of chromosomal mutations are deletions, translocations, duplications, and inversions.
Any chromosome mutation that results in a significant loss of genetic material (Deletion) is almost always deadly. Even while many chromosome mutations do not result in the loss of genetic information, the placement of a gene on a chromosome might affect how it is expressed. In humans, a number of genes can become seriously misaligned, which can obstruct normal foetal development (lethal). Similar to gene mutations, chromosomal mutations can be advantageous, harmful, fatal, or benign. Chromosome mutations are more likely to be damaging or fatal because they impact much larger portions of DNA that may carry hundreds or even thousands of genes.
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What causes genes to turn on or off?.
Gene regulatory protein causes genes to turn on or off. And this process is known as gene regulation.
A cell has hundreds of genes, and gene regulatory proteins select which of those genes will be transcribed by recognizing small segments of double-helical DNA with specific sequences. In a wide range of organisms, thousands of gene regulatory proteins have been found. Individual genes within an organism can be specifically turned on or off because of gene regulatory proteins. And this process is known as gene regulation.
The kinds of gene regulatory proteins that are found in different cell types regulate the patterns of gene expression that give each type of cell its unique characteristics. In eucaryotic cells, nearly every gene is controlled differently.
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What part of the inner ear is involved in hearing?
The part of the inner ear that is involved in hearing is the cochlea.
The cochlea is a spiral-shaped organ located in the inner ear that converts sound waves into electrical signals that can be interpreted by the brain. The cochlea is filled with fluid and lined with hair cells, which are specialized sensory cells that detect sound waves. The hair cells are arranged in a spiral pattern along the length of the cochlea, with the hair cells at the base of the cochlea responding to low-frequency sounds and those at the apex responding to high-frequency sounds.
When sound waves enter the ear and reach the cochlea, they cause the fluid inside the cochlea to move, which in turn causes the hair cells to bend. This bending causes the hair cells to release chemical signals, called neurotransmitters, which then travel to the brain via the auditory nerve. The brain interprets these signals as sound.
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The deep-ea floor ha been conidered a a potential ite for the dipoal of toxic and radioactive wate. What quetion about the biology, geology, and chemitry of the deep-ea environment do you think hould be anwered before uch plan are approved?
Unique life forms are abundant in the ocean's depths. The lack or diminished sun light and the cold climate are what give this place its singularity.
Additionally, the pressure is substantially higher here. The species in this region have undergone extensive evolution and have become used to their surroundings. Studies must be conducted on the geology and the organisms that reside on the deep sea floor. Studying the potential addition of such trash to the local organic matter is necessary.Unique life forms are abundant in the ocean's depths. The lack or diminished sun light and the cold climate are what give this place its singularity. Another issue that needs to be addressed is the stability of the deep sea floor and its capacity to withstand hazardous waste. Studies must be conducted on the geology and the organisms that reside on the deep sea floor.
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What is the theory of evolution through natural selection?.
Because the "fittest" organisms those most adapted to their environment are the ones that reproduce most successfully and are most likely to pass on their qualities to the next generation, natural selection is commonly summarized as "survival of the fittest."
In accordance with this hypothesis, the population consists of a variety of organisms, but only those can adapt to their environment and remain there. An evolutionary mechanism is a natural selection. Environment-adapted organisms have a higher chance of surviving and dispersing the genes that contributed to their success. Over time, this mechanism leads to the evolution and divergence of species. Because some of its claims are supported by facts, natural selection is regarded as a theory. Additionally, it is widely acknowledged by experts around the world and offers a solid justification for how species evolved.
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A. xylem
C. leaves
If it rains and the roots of
a plant absorbs the
water, what vascular
tissue will carry the water
up the plant?
D. phloem
D. tree trunk
Answer: A. Xylem
Explanation: Xylem is the type of vascular tissue carries water up through the plant.
what is the structure on a beluga’s forehead called?
Blowhole. A muscular flap covers a single blowhole on the dorsal surface of the head. A watertight seal is provided by the flap. The blowhole of a beluga whale lets the animal breathe.
What is the beluga's head called?melon The bulbous structure, which is known as a "melon," is located just in front of the whale's blowhole. These whales use their melons to direct the sounds they make while speaking through their noses. Belugas focus sounds in specific directions by wriggling their melons.
Why are beluga whales known to have large foreheads?They also have a forehead feature known as a "melon" that is thought to aid in communication and echolocation. Spouting air through the sinuses gives a beluga's melon the ability to change shape.
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in which organ does most nutrient absorption occur?
The majority of the nutrients in your meal are absorbed in the small intestine, and your circulatory system then transports those nutrients to other parts of your body for storage or utilisation.
Little intestine. To finish the digestion of proteins, carbs, and lipids, your small intestine produces digestive juice, which combines with bile and pancreatic juice. Some of the enzymes required to break down carbs are produced by bacteria in the small intestine. To assist with food digestion, your small intestine transports water from your bloodstream into your GI tract. Water is absorbed along with other nutrients in your small intestine. big intestine. More water enters the bloodstream in the large intestine from the GI tract. The bacteria in the large intestine assist in nutrition breakdown and vitamin K production.
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History taking is key part of each initial consultation. Which of the following is NOT typically included?
How the animal is behaving
What tests are going to be carried out
What the symptoms are
How the animal is eating and drinking
What treatments they are receiving (including non-prescribed)
Answer:
what test are going to be carried out
What is skepticism?
a new scientific idea
being interested in new or different ideas
a general agreement among scientists about a scientific idea
the understanding that knowledge in a particular area can be uncertain
An attitude of skepticism or a tendency to be skeptical, either generally or with regard to a certain object.
What is skepticism and why is it important?In order to be skeptical, one must refrain from leaping to conclusions when examining a claim or an explanation. In the course of a study, it enables scientists to take into account every scenario and rigorously examine all available data.Doubt, dubiety, mistrust, suspicion, and uncertainty are some typical synonyms for skepticism. While all of these terms refer to a "lack of sureness about someone or something," scepticism denotes a refusal to accept something without concrete proof.A sceptic is someone who thinks that some or all of human knowledge is illogical. Skeptics contend that it is preferable to suspend believing rather than rely on the disputed byproducts of reason because even our finest methods for learning about the universe occasionally fall short of full certainty.To learn more about skepticism refer to:
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Answer:
D
Explanation:
The understanding that knowledge in a particular area can be uncertain
Some plants have leaves that are poisonous to some animals. Which kind of adaptation is this? Survival
reproduction
respiration
defense
Defense is an adaptation process in which certain plants develop leaves that are harmful to certain animals.
Poisonous plants include herbs, flowers, shrubs, or fruits that are poisonous enough to injure humans, dogs, cats, and other animals.
Plants' defensive systems are diverse, including physical adaptations such as thorns and the manufacture of chemical compounds that can hinder predator eating and some with antibacterial properties.
Throughout evolution, all species have been attacked by viruses, bacteria, and fungus; they are also ingested as a source of nutrition by certain herbivorous animals and vertebrates.
Plants have developed a variety of defensive mechanisms in reaction to external influences that impede their natural growth, ranging from anatomical adaptations to chemical defense.
Plants generate a wide range of chemical molecules as defense. Some restrict the activity of pathogens and prevent their attack, while others induce negative consequences at various degrees, such as discomfort on touch, nausea, or gastrointestinal issues.
Saponins, phenolic compounds that include phenolic acids, and complex polymers such as tannins and lignin are among the chemicals that might have pharmacological and toxicological effects in animals.
As a result, we may assume that plants have evolved diverse defense systems, such as chemical defense, in which certain plants have deadly leaves to certain animals.
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What is ozone comprised of in the lower atmosphere? Please answer i am giving 30 points
what we get wrong about metabolism scientific american
Scientific American explains that much of the confusion surrounding metabolism lies in the fact that people often equate it with weight loss or gain.
What is metabolism?
Metabolism is a vital process in our body, and one that is often misunderstood.
While metabolism does play a role in the body's energy balance, it is much more complex and far-reaching than that. In reality, metabolism is a complex network of biochemical pathways and processes that enable the body to obtain, break down, and use energy from food, as well as turn food into the molecules and structures needed for growth and maintenance.
Metabolism is often misunderstood in other ways as well. For example, people often assume that metabolism is solely controlled by the amount of food they eat and their activity level. While this is true to a certain extent, the body's metabolism is actually regulated by a complex system of hormones and enzymes which interact with one another in order to maintain homeostasis and energy balance. This is why diet and exercise alone are not always enough to control metabolism; hormones and enzymes must be taken into account.
Finally, another misconception about metabolism is that it is an "all-or-nothing" system. In reality, metabolism is an intricate and highly regulated network of processes that can be altered by factors such as stress, environment, and genetics. As such, it is important to understand and respect the complexities of metabolism in order to maintain optimal health and wellbeing.
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What is the process in which nutrients in dead organisms are returned to the soil?
Answer:
The process of decomposition involves the release of nutrients that support dead organisms back into the soil.
Hich tatement can be inferred from the Paleozoic era time cale?
There wa volcanic activity during the Paleozoic era. Dinoaur exited in the middle part of the Paleozoic era. Marine organim exited in the early part of the Paleozoic era. Ammonite exited before the trilobite did during the Paleozoic era. Eroion and depoition were procee that occurred during the Paleozoic era
The Paleozoic era time scale can be used to deduce the following: Marine species were present in the Paleozoic's early stages.
-Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian are the six sub-epochs that make up the paleozoic era.
-Nearly all marine phyla first appeared during the Cambrian era, which is the beginning of the Paleozoic period.
-Millions of organisms emerged at a single time period in history between 541 and 485 million years ago.
-A breach in the supercontinent Pannotia also occurred.
Why was the Paleozoic Era called the Age of Ancient Life?This is so because modern animals and plants and their fossil counterparts are comparable. The Paleozoic Era, which is the oldest, is referred to as "ancient life." Animals and plants that are completely extinct today (like trilobites) or are uncommon nowadays (like brachiopods) can be found preserved in fossil form from the Paleozoic Era.
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Question:-
Which statements can be inferred from the Paleozoic era time scale?
1.There was volcanic activity during the Paleozoic era.
2.Dinosaurs existed in the middle part of the Paleozoic era.
3.Marine organisms existed in the early part of the Paleozoic era.
4.Ammonites existed before the trilobites did during the Paleozoic era.
5.Erosion and deposition were processes that occurred during the Paleozoic era.
What about the internal structure of the cave fish and minnow suggest common ancestry?
The position of the internal organs, muscles, and bones are the internal structure of the cave fish and minnow suggest common ancestry.
What is a cave fish?
A general word for freshwater and brackishwater fish adapted to living in caves and other underground settings is cavefish or cave fish. Subterranean fish, troglomorphic fish, troglobitic fish, stygobitic fish, phreatic fish, and hypogean fish are all words that are related.
All continents, with the exception of Antarctica, are home to more than 200 species of obligate cavefish that have been officially characterised. Despite being numerous as a whole, many cavefish species have extremely restricted ranges and face grave threats. Because they belong to so many different families, cavefish do not form a monophyletic group. Reduced eyes and pigmentation are typical cavefish adaptations.
What is ancestry?
Ancestry is the term used to describe a person's ethnic origin, descent, heritage, place of birth, or parents' or ancestors' countries of origin before they immigrated to the United States.
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