The heart has 4 chambers.
<span>B. A virus that causes a common cold
Hope this helps!
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Amphibia,
Reptilia, Aves, and Mammalia are included in the group Tetrapoda. The
correct answer between all the choices given is the second choice. I am hoping
that this answer has satisfied your query and it will be able to help you in
your endeavor, and if you would like, feel free to ask another question.
HOPE THIS HELPED!!! XD
Answer:
When electrons go through the electron transport chain, the protons in the matrix of the mitochondrion are pumped into the intermembrane space, or in other words, the space between inner and outer membranes.
Explanation:
Answer:
The nucleus (On the image, it's the sphere in the middle)
