Answer:
Kingdom Protista
Explanation:
They have a nucleus, are multicellular, and prefer moist enviornments.
Sharks, whales, and dolphins share similar features such as body shape and the position of fins. However, sharks have gills for breathing,
while whales and dolphins have lungs. These differences indicate that the organisms share common ancestor for
v
Whales also possess a vestigial pelvic bone. The presence of the pelvis bone may indicate that whales?
Ans These differences show that they belong to a same kind of species. But in science whales are categorized as mammal
Explanation:
Which endocrine gland releases a hormone to regulate calcium levels in the bloodstream ? A. Thyroid B. Pituitary gland C. Adrenal gland D. Pancreas
Answer:
b
Explanation:
Parathyroid glands release a hormone to regulate calcium levels in the bloodstream the regulation of calcium levels in the blood.
Explanations:
Endocrine glands are the gland that secret hormone directly into the blood for creating certain stimuli. Parathyroid glands produce parathyroid hormone, which plays a key role in the regulation of calcium levels in the blood. The parathyroid glands are two pairs of small, oval-shaped glands. They are located next to the two thyroid gland lobes in the neck. Each gland is usually about the size of a pea.
functions:
Release of calcium by bones into the bloodstreamAbsorption of calcium from food by the intestinesConservation of calcium by the kidneysStimulates cells in the kidney to transform weaker forms of vitamin D into the form that is strongest at absorbing calcium from the intestines
therefore, option A is the correct answer.
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which kind of animals compete for the same kind of food? what type of competition is it
*fox
*leopard
*squirrel
*lion
Answer:
Leopard and lion
as they both are carnivores ( eats meat only)
Answer:
leopard and lion (carnivores )
Explanation:
intraspecific competition
In the diagram, the arrow shows the movement of
electric charges through a wire connected to a battery.
Mark this and return
What causes the electric charges to flow from one end
of the battery to the other?
O a balance in electric potential
O a balance in resistance
O a difference in electric potential
O a difference in resistance
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O a difference in electric potential
Based on the food chain below, if a bald eagle acquires 50 kg of energy, how much energy did the zooplankton get from the phytoplankton?
phytoplankton zooplankton bivalves sea ducks bald eagle
500 kg
5,000 kg
50,000 kg
500,000 kg
50,000 x 0.10 = 5,000J energy did the zooplankton get from the phytoplankton. thus option B is correct.
What do you mean by food chain?In ecology, the food chain is the flow of substance and energy from one organism to another in the form of food.
A process cycle from producer to consumer to decomposer is referred to as a food chain.
Plants, herbivores, omnivores, and carnivores all exist. Beginning with plants, moving on to herbivorous insect, spiders, a small bird, a snake, a hawk, a fox, and a lion When a person passed away, a hyena would consume their body. When the hyena passed away, the body would disintegrate, becoming food for worms, and then become fertilizer for plants. so according to 10 percent rule, zooplankton get 5000 j of energy from phytoplanktons.
The food chain's cycle will then repeat itself time and time again.
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Answer:
C. 50,000 KG
Explanation:
edge 2022 :)
what effect does binding of epinephrine to a G protein linked receptor have on a cell?
Epinephrine generates the separation of the G protein linked receptor and it activates the G protein to trigger proper cellular signaling.
What is Epinephrine?Epinephrine is a key chemical messenger (i.e. a hormone) that binds to suitable ligands in the cell membrane.
Upon Epinephrine binding, G-protein is activated to produce a molecular cascade and triggers a cell signaling inside the cell.
In conclusion, Epinephrine generates the separation of the G protein linked receptor and it activates the G protein to trigger proper cellular signaling.
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Earth is a closed system. That means the amount of rocks, metals, carbon, nitrogen, oxygen, and water on Earth . So, it is essential that biogeochemical cycles these materials as they move through Earth's subsystems.
Earth is a closed system, which means the amount of rocks, metals, carbon, nitrogen, oxygen, and water on Earth remains constant. So, it is essential that biogeochemical cycles renew these materials as they move through Earth's subsystems.
What are biogeochemical cycles?Biogeochemical cycles may be defined as the flow of chemical elements and compounds between living organisms and the physical environment for the need of each other.
The complete question is as follows:
Earth is a closed system. which means the amount of rocks, metals, carbon, nitrogen, oxygen, and water on earth ___. So, it is essential that biogeochemical cycles __ these materials as they move through earth subsystems.
remains constant, can increase, can decrease.destroy, create, renew.The biogeochemical cycles on the earth's planet are accountable for processing the identical old rocks, metals, carbon, nitrogen, oxygen, water, and other abiotic implications on Earth in order to intrinsically revitalize them and construct them obtainable for reuse for the organisms need.
Therefore, it is well described above.
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Answer:
Earth is a closed system. That means the amount of rocks, metals, carbon, nitrogen, oxygen, and water on Earth remains constant. So, it is essential that biogeochemical cycles renew these materials as they move through Earth's subsystems.
Explanation: ed mentum or plato
Select the correct text in the passage.
Which phrase indicates a limit to the scientific accuracy of the experiment?
For the study of a particular drug, Marcus proposes an experiment with a particular population. Approximately 200,000 people in the United States take this drug. He started out with a sample size of 300 people. First, he conducts research on the medical history of the people in his study. He collects the information using reliable sources. He decides to repeat the experiment using a larger sample size.
The phrase that indicates a limit to the scientific accuracy of the experiment is to repeat the experiment using a larger sample size.
What is Scientific accuracy?Scientific accuracy may be defined as the correctness of a single measurement that should be accomplished by scientists during their practical experiments.
The complete question is as follows:
the sample size of 300 people.research on the medical historycollects the information using reliable sourcesrepeat the experiment using a larger sample size.The sample size will always play an active role in research. It also has a big impact on the accuracy of a scientific study. A larger sample size gives the most accurate results as compared to small sample size.
Therefore, the correct option is D.
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Answer:
" a sample size of 300 people "
Hope this helps!
Explanation:
On which structure do most neuron to neuron communications occur? group of answer choices
The structure on which most neuron to neuron communications occur is; Choice A; Structure 1.
Which structure is the site for most neuron to neuron communications?Neuron to neuron communications occur at junctions called synapses. At the synapse, a neuron interacts, more specifically, sends a message to another neuron. The synapses in discuss communicate using chemical messengers.
Remark;
A) 1
B) 2
C) 4
D) 3
E) 5
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5. Which of the following does NOTdescribe a difference between hormones and neurotransmitters?
A. Hormones are carried by blood, while neurotransmitters diffuse at synapses.
B. Hormones are released by endocrine glands, but neurotransmitters are released by neurons.
C. Hormones are chemical messengers, but neurotransmitters are electrical signals.
D. Hormones have longer lasting effects than neurotransmitters.
Answer: A
Explanation:
which of the following is not an important er-resident enzyme that modifies proteins in the secretory pathway?
The option that is not an important er-resident enzyme that modifies proteins in the secretory pathway is D) Sec61.
What are the ER enzymes?The smooth ERare those enzymes that take part in the synthesis of lipids as well as the phospholipids, and they carry out important role in the formation of new cellular membrane.
Some important er-resident enzyme are:
oligosaccharyl transferase BiPprotein disulfide isomeraseTherefore , option D is correct.
The options for the question are:
A) oligosaccharyl transferase
B) BiP
C) protein disulfide isomerase
D) Sec61
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which component is released from the active site of an enzyme during a chemical reaction ?
Answer:
The Product
Explanation:
In a chemical reaction the enzyme plays an important role in catalyzing the reaction.
The enzyme has an active site on its structure to which a substrate can come and bind. The active site has a specific shape to which the substrate of complementary shape can come and bind. once the substrate is bound to the active site of the enzyme the reaction takes place and a product is formed. Once the product is formed, product is released from the active site and enzyme remains unchanged at the end of the reaction.
therefore answer is product that is released from the active site
I contain most of the cell that perform photosynthesis. who am I?
Answer:
chlorophyll
Explanation:
Organisms with the most beneficial traits will survive. This is commonly known as.
members of the _____ movement would be very concerned about the unequal exposure of members of a certain race to pollution.
Members of the environmental justice movement would be very concerned about the unequal exposure of members of a certain race to pollution.
What is the environmental justice movement?The environmental justice movement is a group aimed at removing all inequities associated with environmental pollution.
The environmental justice movement provided important hits in the conservation of communities for ecological issues.
In conclusion, members of the environmental justice movement would be very concerned about the unequal exposure of members of a certain race to pollution.
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.All cells share common traits that help scientists draw conclusions about the basic needs and functions of living organisms. What is the meaning of cell theory?
O proves that all cells have all the same structural parts
Ost
The connotation of the cell theory is that a cell is the structural and functional division of an organism. A cell is the smallest unit of all living entities. All living organisms whether it is plants or animals are constructed up of cells.
Who proposed the cell theory?The cell theory was proposed by a German botanist M.J Schleiden and a German zoologist T. Schwann.
The cell theory was further distilled in 1855 by German biologist R. Virchow. According to him, "All cells are arising from pre-existing cells."
Therefore, it is well described above.
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synergies, in the context of segmentation, are blank______ that can be achieved by focusing on horizontal or vertical lines within the market-product matrix.
Synergies, in the context of segmentation, are efficiencies that can be achieved by focusing on horizontal or vertical lines within the market-product matrix.
What is a synergy?A synergy simply means the interaction of organizations to produce a combined effort to achieve a goal.
In this case, synergies, in the context of segmentation, are efficiencies that can be achieved by focusing on horizontal or vertical lines within the market-product matrix.
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Oxygen is present in a what process
Answer:
redox reaction, photosynthesis
How does cladistics reconstruct phylogenies?
Cladistics reconstructs phylogenies by considering shared derived characters between taxonomic groups and the maximum parsimony criterium.
What is the cladistic analysis?Cladistics evaluate the relationship between different taxa according to shared characters.
The cladistic analysis follows the maximum parsimony criterium.
Explains the character state from the point of view of the fewest changes through history. Explains evolution with the minimal amount of evolutive changes.
It recognizes the monophyletic groups as natural groups. These groups are the clades, and their classification -sequencing- represents their phylogeny.
The sequencing term refers to lists of groups according to their relationship and their shared traits. One group is the sister group of the following one.
Cladistics uses cladograms to represent the common ancestral relationships and the emergence of different characters among the involved groups.
So the cladogram represents the relationship between taxonomic groups according to a derived character.
The derived character is any new trait that a group transmits to its descendants.
Through evolution, the characters change, and new changes are added. When referring to a derived character, we mean that all the subsequent groups in the cladogram carry and share the trait.
According to this framework, cladistics reconstructs phylogenies by considering shared derived characters and the maximum parsimony criterium.
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Which event is NOT part of the process of DNA replication?
1.Ribosomes are synthesized.
2.Hydrogen bonds are broken.
3.Nitrogenous base pairs are formed.
4.A double-stranded molecule unwinds.
Explanation:
1 cuz we don't need that ,we need all of them exept number 1
Answer:
1. (Ribosomes are synthesized)
Explanation:
Ribosomes are only involved in the translation of mRNA to proteins. During DNA replication DNA helicase unwind the DNA double-strand by breaking hydrogen bonds between the two strands. DNA polymerase then replicates each strands using nucleotides complimentary of the replicating strands.
The answers above is not my original answer, this question has already been answered previously by someone else, so all credit is given to Diatonic254.
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1.write the chemical equation for transpiration
2.what is translocation ??,give the chemical equation for translocation
plss help will mark brainlest..
Answer:
Explanation:
1.6CO2 + 6H2O — > C6H12O6 + 6O2.
2.Conducting tissue is concerned mainly with the transport of soluble organic material made during photosynthesis. This process of transportation is called as translocation.
when speaking of the anatomy of a virus, we can say that ________.
When speaking of the anatomy of a virus, we can say that it is a protein capsid which comes in form a RNA or DNA
What is anatomy of a virus?A virus is of a single or double-stranded nucleic acid surrounded by a capsid (called the protein shell).
When they are inside the living host cell, they can only produce once. Hence we can conclude that when speaking of the anatomy of a virus, we can say that it is a protein capsid which comes in form a RNA or DNA
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what does the autonomic nervous system do ?
The autonomic nervous system controls internal body processes such as the following: Blood pressure, Heart and respiratory rates and Body temperature.
What is the function of the autonomic nervous system?It helps to maintain the stability and internal balance of the body, through the coordination of various activities such as hormone secretion, circulation, respiration, digestion and excretion.
this system is a functional division of the nervous system, and has parts in the central nervous system (CNS) and the peripheral nervous system (PNS). It unconsciously controls the glands and smooth muscle of all internal organs.
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What feature enables the paramecium to move?
The feature enables the paramecium to move is moves through cilia.
What is the mode of locomotion for paramecium?Protozoan that moves by cilia, free-living, unicellular, bearer of a translucent and flattened body. They reproduce by simple division and are visible under the light microscope.
Paramecium, as a ciliated protozoan, has peculiar characteristics to be defined. they are also used to bring food into the cytostome where it will be phagocytosed after passing through the cytopharynx.
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Which concept is part of the theory of evolution by natural selection
Answer:
New generations are better suited to survive than previous generations.
Explanation:
Darwin's evolutionary theory states that evolution is the slow process through which organisms change over time. Natural selection is the process by which evolution takes place. Variation in organisms, some of which offers an adaptive benefit, may be passed down from generation to generation. Better suited organisms will have a higher probability of surviving and procreating, and they will also pass on these phenotypic modifications to the offspring. Evolution is a long, protracted process because these phenotypic changes occur gradually across generations at the species level. As a result, it is anticipated that future generations would be better adapted to endure in the same environmental circumstances.
Which process occurs in the cells of both self-feeders and other-feeders?
A. Food molecules are broken down and energy is released.
B. Inorganic substances are used to make organic compounds.
C. New inorganic and organic substances are created from energy.
D. Matter and energy are destroyed as food molecules are broken
down.
The correct option is (c)New inorganic and organic substances are created from energy in the process that occurs in the cells of both self-feeders and other-feeders.
What are Autotrophs(self-feeders) and heterotrophs(other-feeders)?Autotrophs (self-feeders) are organisms that synthesize the biological molecules necessary for life support and digest inorganic substances from their environment using an external energy source. This kind of nutrition is found in plants that prepare their food through photosynthesis.
An organism that consumes other species in a food chain is known as a heterotroph (other-feeders). Heterotrophs cannot transform inorganic materials into organic ones, in contrast to autotrophs. They have to rely on a source of organic carbon that was once a part of a living thing. Heterotrophs depend on autotrophs either directly or indirectly for nutrients and food energy. This kind of nourishment is present in parasites, bacteria, fungi, yeast, humans, and other animals.
Therefore, in the cells of self-feeders and other feeders new inorganic and organic substances are created from energy
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Answer: Its A-Food molecules are broken down and energy is released, it is not C.
Explanation: Both break down are break down food molecules when energy is released.
What are some possible benefits and dangers if the DNA is used to create a mutant form of the organism?
Explanation:
The majority of mutations have neither negative nor positive effects on the organism in which they occur. These mutations are called neutral mutations. Examples include silent point mutations. They are neutral because they do not change the amino acids in the proteins they encode.
Many other mutations have no effect on the organism because they are repaired beforeprotein synthesis occurs. Cells have multiple repair mechanisms to fix mutations in DNA. One way DNA can be repaired is illustrated in Figure below. If a cell’s DNA is permanently damaged and cannot be repaired, the cell is likely to be prevented from dividing.
Can someone help me please
Explanation:
his blood - stained sword lost its sharpness
Answer:
D
Explanation:
ghhjjjhgggghhhhhhhhhhhhgghhhhh
Why some plants like a citrus plants bear thorn ?
There are four layers of cells in the epidermis of thin skin. From superficial to deep, these layers are stratum ______, stratum ______, stratum ______, and stratum basale.
There are four layers of cells in the epidermis of thin skin. From superficial to deep, these layers are stratum corneum, stratum granulosum, stratum spinosum, and stratum basale.
What is the main function of the Epidermis?The main role of the epidermis is to shield your body from harm, or injury, UV radiation, pathogen invasion, and chemical infections.
The considerable superficial part of the epidermis is comprehended as the stratum corneum, while the most profound part of the epidermis is understood as the stratum basale.
Therefore, it is well described above.
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