Answer:
water
Explanation:
Macromolecules contain a lot of atoms,whereas the water molecule contains only 3
Answer:
Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere.
Answer:
The peptide:MHC class II complex can be recognized by antigen-specific armed ... Some microbial antigens can activate B cells directly in the absence of T-cell help. ... 9-1. The humoral immune response is initiated when B cells that bind antigen ... cells presenting these internal peptides can then activate the B cell to make . Explanation:
Answer:
A trophic cascade is a side-effect when a trophic level (species) of the ecosystem is reduced or removed. Their ecological species interactions keep entire ecosystems balanced. Hence, suppressing their numbers or changing their behavior due to predation risk, results in an ecological imbalance or a trophic cascade.
Explanation:
<h2>
BRAINLIEST PLEASE ;)</h2>
<em>Answer: </em>
<em>If you get an error saying "Upload limit reached" when trying to upload a video, try again in 24 hours.</em>
<em> </em>
<em>Explanation:</em>
