What type of blood vessel carries
oxygen-poor blood back to the
heart?
Answer:
veins
Explanation:
Veins carry oxygen-poor (deoxygenated) blood back to the heart, whereas arteries carry oxygen-rich blood away from the heart.
Explanation:
as blood travels through the body, oxygen is used upand the blood become oxygen poor. oxygen-poor blood returns from the body to the heart through Superior vena cava and inferior vena cava, the two main veins that Bring blood back to the heart. this is my answerA red blood cell has been placed into three different solutions. One solution is isotonic to the cell, one solution is hypotonic to the cell, and one solution is hypertonic to the cell. Determine which type of solution is in each beaker based on the cell's reaction. Drag each item to the appropriate bin.
The type of solution in each beaker based on cell's reaction are :
Isotonic solution : Normal reactionHypotonic solution : The cell becomes turgidHypertonic solution : The cell becomes deformedMatching each solution to the cell reaction
When the red blood cell is placed in an isotonic solution the solvent flows in and out of the blood cell at the same rate, when the cell is placed in a hypotonic solution the solvent flows into the cell at a faster rate causing the cell to swell ( becomes turgid ) also when the cell is placed in a hypertonic reaction the cell becomes deformed becomes it loses more water than it absorbs.
Hence we can conclude that The type of solution in each beaker based on cell's reaction are : Isotonic solution : Normal reaction, Hypotonic solution : The cell becomes turgid, Hypertonic solution : The cell becomes deformed
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Fig. 6.1 shows four species of myriapod, not drawn to the same scale.
Polydesmus
denticulatus
1
Fig. 6.1
(a) State three features of all myriapods that are visible
Answer:
Many pairs of legs.Two body sections (head and trunk)One pair of antennae on the head.Hello can someone help me please and thank:)
Answer:
B- J, L, K
Explanation:
Wrong Subject but the largest side's opposite angle is the largest if that made sense. For example, KL which is the largest side corresponds to the largest angle <J.
Hello people ~
Which of these is not a process that can cause speciation?
A. Seasonal migration
B. Asexual reproduction
C. Mate selection
D. Genetic damage
Answer:
I believe it's D. asexual reproduction
Choose all the answers that apply.
Asteroids:
only orbit planets
take millions of years to orbit the sun
are made of frozen gas and ice
sometimes come very close to Earth
only orbit the sun
Asteroids sometimes come very close to Earth and take millions of years to orbit the sun. Thus, the correct options are B and D.
What are Asteroids?Asteroids may be defined as nominal planets which can neither be classified either as a planet or as a comet that orbit the sun as well as planets.
An asteroid is a name we allocate to the enormous number of small bodies that orbit the sun, here in the internal solar system. These small bodies orbit planets as well as the sun and take a significant time in orbiting.
Therefore, the correct options are B and D.
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___________ synthesizes carbohydrates and puts finishing touches on proteins synthesized at
The Golgi complex synthesizes carbohydrates and puts finishing touches on proteins synthesized at rough endoplasmic reticulum.
What is cell organelles?The cell organelles are the membrane bound structures found within the cells which has different specific functions.
Example of cell organelles include:
Golgi complex: These organelles specializes in protein modification and exportation.Endoplasmic reticulum: These organelles are specialized for protein production for export out of the cell.Learn more about cell here:
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The "collar bone" is also known as the:
According to the research, the collar bone is also known as the clavicle.
What is the clavicle?They are the bones of the human being that are found in the upper sector of the chest, articulating with the acromion of the shoulder blade and the sternum.
This bone is important for the composition of the shoulder joint complex, since it functions as a stabilizer for all parts of the shoulder, and therefore for the arm.
Therefore, we can conclude that according to the research, the collar bone is also known as the clavicle.
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Answer:
clavicle
Explanation:
hope this helps :)
For Labrador retrievers, black fur is dominant over yellow. Could a golden yellow
Labrador be obtained by crossing two black ones? Explain. (3 marks)
Answer:
it could
Explanation:
the recessive genes of the golden fur is still in the gene pool and maybe one black lab has the dominate black fur gene but has the golden recessive gene still accessible. so it could happen
how do the human nervous and endorcrine systems work together
The endocrine system, along with the nervous system, coordinates the body's functions to maintain homeostasis during rest and exercise. The nervous and endocrine systems also collaborate to initiate and control movement, as well as all of the physiological processes that movement entails.
What is endocrine system?The endocrine system is a web of glands and organs. It controls and coordinates your body's metabolism, energy level, reproduction, growth and development, and response to injury, stress, and mood using hormones.
The endocrine system, along with the nervous system, coordinates the body's functions to maintain homeostasis during rest and exercise.
The nervous and endocrine systems also collaborate to initiate and control movement, as well as all of the physiological processes that movement entails.
Thus, the nervous and endocrine systems work together to carry out the coordination of the body.
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What is the analine blue stained structure in the sample?
The analine blue stained structure in the sample is called; Extracellular tissue
What is the component of the biological structure?From online sources, the analine blue stained structure is a stringy mass beneath the intestinal epithelium that extends into the villi.
Now, Aniline blue binds to extracellular structures such as the fibers in the lamina propria which is the name of the connective tissue beneath the intestinal epithelium.
Finally, the analine blue stained structure is called Extracellular tissue.
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What do excitatory neurotransmitters cause ?
Exitatory neurotrasmitter excite the postsynaptic memebrane by increasing the action potential effects. They allow the messages passage from one cell to the other.
What do excitatory neurotransmitters cause?
Neurotransmitters might be either excitatory or inhibitory.
As the term suggests, excitatory neurotransmitters are in charge of exciting the postsynaptic cell.
Once the neurotransmitter is released from the presynaptic membrane, it travels through the synaptic space until it reaches the postsynaptic membrane.
When the molecule meets its receptor, it triggers a series of events that excite the receiving neuron increasing the action potential effects and allowing messages to be passed from one cell to the other.
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What format is typically followed with
a hypothesis?
A. a long explanation
B. a question
C. if, then statement
Wang
Answer:
C.
Explanation:
A hypothesis is always in the form of an if, then statement.
Organisms with the most beneficial traits will survive. This is commonly known as.
Answer:
O Ecosystem which is survival of the fittest.
Explanation:
Answer:
Natural selection
Explanation:
Write a short description of the life cycle of a flowering plan
Answer:
Flowering plants begin as seeds. These seeds store energy and food within them long enough to reach the right environment and germinate. Germination is the development of a plant, growing from a seed into a seedling. Seedlings are the second stage of a flowering plant's life. This is when their roots begin to form and photosynthesis can begin. Next comes the growth period. After the seedling is planted, it requires a lot of food and energy as more leaves begin to emerge. The next stage of a flowering plant's life is the flowering stage itself. This is when buds and flowers begin to sprout. It enters the reproductive stage and pollination begins, allowing more seeds to be sown.
What is the founder effect?
A(when an individual is lonely
B(When individuals join a population and their genes merge into the pool.
C) When individuals become isolated from the
larger populations and the gene pool differs
from the original population over time
Answer:
What is founder effect
Explanation:
i think C)
+
C
What will most likely increase if there is a high death rate?
Answer: would be emigration
Explanation: When the death rate shoots up in a particular environment due to certain factors organisms are bound to emigrate away for such environment to avoid death from reaching them
Elephantiasis is caused by _____.
Cnidarians: jellyfish
Platyhelminthes: flat worms
Nemotoda: round worms
Mollusca: mollusks
Annelida: segmented worms
Answer:
Elephantiasis is caused by nematodes (roundworms).
What is elephantiasis?
A chronic filarial disease resulting in lymphatic obstruction, characterized by marked enlargement of the parts affected, especially the legs and scrotum, transmitted by mosquitos.
Elephantiasis is caused by nematodes (round worms). Round worms are any nematode, especially Ascaris lumbricoides, that infests the intestine of humans and other mammals.
Some prevention to take against elephantiasis:
Mosquito nets, insect repellentVoodoo healing techniquesElevate and exercise affected body partSkin treatment
Wash area twice dailyAntibacterial creamCDP
Lymph drainage, massage, compressive bandages#SPJ2
Which of the following is TRUE about the role of organisms in biogeochemical cycles?
A. Materials follow a cyclic path in the ecosystem.
B. The end part of every food chain is decomposers.
C. Primary consumers take more energy than Secondary consumers
D. Biotic factors bring back the essential materials to the environment through respiration or decomposition.
Answer:
C.
Explanation:
C. Primary consumers take more energy than Secondary consumers
what is the significance of diffusion and osmosis in living organism ?give one example in support of your answer
Answer:
Plants use this to absorb water from the soil to the roots. Osmosis is important to plants because it allows for water uptake, photosynthesis and general stability.
Osmosis ensures that all cells and structures within a plant have correct water pressure and volume.
In animals, osmosis helps to absorb water from the intestines to the blood.
Explanation:
just Mark me brailinist
What makes plants wilt?
C. a lack of stability that would usually come from the
ribosomes
A. a lack of turgor pressure that would usually come
from water stored in the central vacuole
B. a lack of motility that would usually come from the
nucleus
Answer:
A
Explanation:
Due to the hot weather the plants moisture start to decrease until they wilt.
Answer: a lack of turgor pressure that would usually come from water stored in the central vacuole
Explanation: Dehydration.
The scientific evidence that scientists use in supporting or critiquing the conclusions of experiments usually consists of
A) raw data
B) outlier data
C) precise data
D) summarized data
Answer:
The answer is A raw data i think I'm not sure
Aero in aerobic and anaerobic respiration stands for?
Owater.
Ohydrogen.
O carbon.
O oxygen.
D adhesion and cohesion of wale
24. Choose the correct statement that will make the following sentence true. "If a plant cell is put into a solution with a
very high concentration of solute,....
A water will leave the vacuole.
B
the cell will be turgid (the vacuole will be filled with water).
C the cell membrane will be held out by the pressure of water against the cell wall.
D. water will no longer enter the cell.
Answer:
water will leave the vacuole
Which represents the cross between parent plants if one is heterozygous and has yellow-colored pods and the other is homozygous and has green-colored pods?.
The cross between parent plants if one is heterozygous for yellow pods and the other is homzygous for green pods - Yy yy., i.e., option A.
What is heterozygous?The occurrence of different types of alleles is referred to as heterozygous condition.
A heterozygous genotype may consist of one normal allele and one mutated allele, or two distinct mutated alleles.
The missing options of the question are:
Yy ´ yyYY ´ yyYy ´ Yyyy ´ yyThe cross between parent plants if one is heterozygous for yellow pods and the other is homzygous for green pods - Yy yy.
Thus, the correct option is A.
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Answer: Yy’ yy
Explanation:
because I said so
Reviewing Meiosis:
1. How many cells are present and how many chromosomes are present in the cell at each stage?
start of Meiosis____
end of Meiosis 1_____
end of Meiosis 2____
Start of Meiosis = 1 cell 1 pair of chromosomes
End of Meiosis 1 = 2 cells crossed over chromosome (combined genes 1 in each cell = 2)
End of Meiosis 2 = 4 cells, 1 chromatid in each (4)
I hope it helps!
The smallest contractile unit within skeletal muscle would correspond to the distance between which two points in the figure?
The distance between 1 and 7 spans a sarcomere correspond the structure at B is covered by the perimysium.
What is the smallest contractile unit within skeletal muscle?A sarcomere comprises the segment between two consecutive Z lines and is the contractile unit of the muscle fiber, as it is the smallest portion of the muscle fiber capable of contraction and distension.
In this case, the distance between points 1 and 7 has the smallest structure of a skeletal muscle and corresponds to figure B.
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Match the following. Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer. ResetHelp 1. : Chemical or mechanical process of breaking down foodstuffs into simpler units. 2. : Wavelike smooth muscle contractions that move foodstuffs through the alimentary tube. 3. : Enzymatic breakdown of any type of food molecule. 4. : Process by which simpler chemical units pass through the lumen of the gastrointestinal tract into the blood or lymph.
Matching the following words to the appropriate blanks
Digestion is Chemical or mechanical process of breaking down foodstuffs into simpler units Peristalsis is Wavelike smooth muscle contractions that move foodstuffs through the alimentary tube Hydrolysis is Enzymatic breakdown of any type of food molecule Absorption is process by which simpler chemical units pass through the lumen of the gastrointestinal tract into the blood or lymph Processes of the digestive systemThe terms associated with the sentences listed are the various processes of the digestive system and they are Digestion ( a process of breaking down consumed food into simpler units for absorption ), Peristalsis, hydrolysis and Absorption which is the last phase of the digestive system.
During absorption the chemical units from the digested food passes through the lumen of the gastrointestinal tract into the blood where they are used by the body for the growth and daily activities of the body.
Hence we can conclude that the words matching the sentences are as listed above
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The missing words matched to the blanks
HydrolysisAbsorption DigestionPeristalsisThe people represented by the Denisova fossils likely Group of answer choices were isolated to the point of extinction. looked very much like Neandertals. share a common ancestor with Neandertals. interbred with Homo erectus.
The people represented by the Denisova fossils likely share a common ancestor with Neandertals. The correct option is c.
What are Denisova fossils?So far, there is little physical evidence of the Denisovans' existence. A finger bone, teeth, and skull fragment from a Siberian cave, as well as a lower jawbone from a Chinese cave on the Tibetan plateau, have been discovered so far.
The people represented by the Denisova fossils likely share a common ancestor with Neandertals.
Thus, the correct option is c.
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Describe the genetic code and its relationship to polypeptides and proteins
The genetic code is directly related to polypeptides and proteins in the sense that genes are decoded to synthesize proteins.
What is the genetic code?Genetic code is the set of rules by which the sequence of bases in DNA are translated into the amino acid sequence of proteins.
The genetic code is unique for living organisms and is used to synthesize the proteins that is responsible for various activities in living organisms.
The genes in the genetic code are first transcribed into mRNA, which is then translated into proteins (polypeptides).
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