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KengaRu [80]
3 years ago
15

Which of the following is a major tenet of the cell theory?

Biology
1 answer:
Elina [12.6K]3 years ago
8 0
The generally accepted parts of modern cell theory include: All known living things are made up of one or more cells. All living cells arise from pre-existing cells by division. The cell is the fundamental unit of structure and function in all living organisms
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The cytoplasm in a single celled organism and the circulatory system in a human both?
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The cytoplasm in a single-celled organism and the circulatory system in a human both transport substances throughout the organism
4 0
3 years ago
¿Cual de las siguientes especies se reproduce por fecundación interna ?
Alexxandr [17]

Which of the following species reproduces by internal fertilization?

a) cats

(b) Toads

(c) The fish

(d) alternative b and c

Answer:

(a) Los gatos

Explanation:

Only cats are capable of internal fertilization from the given choices above.

Internal fertilization is the fusion of gametes within an organism. This process occurs during sexual reproduction within the female.

  • Toads and fishes exhibit external fertilization.
  • External fertilization occurs where the male sperm externally fertilizes the eggs of the female.
  • This usually takes place in a moist or wet place especially water bodies. The liquid medium will transport the sperm to the egg.

In cats, the female specie takes in reproductive cells from the male during coitus and it fertilizes the her eggs to produce a zygote.

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3 years ago
4.
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4. DNA sequence comparison

5. Random mutations 


6 0
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Sciene help! I don't get this
Svetlanka [38]
B. Remove the plant. 
8 0
3 years ago
Which buffer system is closely linked to the respiratory system?A. pyruvateB. bicarbonateC. phosphateD. protein
Alchen [17]

B. Bicarbonate

<em>The blood brings bicarbonate to the lungs, and then it is exhaled as carbon dioxide. The kidneys also help regulate bicarbonate... it is excreted and reabsorbed by the kidneys.</em>

<em>The body's main response is to get rid of more carbonic acid and hold on to as much bicarbonate base in the kidneys as it can.</em>

4 0
3 years ago
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