Birds, unlike mammals, do not have separate exits for urine and feces. Both waste products are eliminated simultaneously through the cloaca. While mammals excrete nitrogenous wastes mostly in the form of urea, birds convert it to uric acid or guanine, which reduces water loss in comparison.
Glycogen is <span>type of molecule stores the main source of energy used by animals.
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A eukaryotic cell has a plasmamembrane<span>, </span>cytoplasm, and ribosomes. eukaryotic cells have: amembrane<span>-bound nucleus. numerous </span>membrane<span>-bound organelles (including the endoplasmic reticulum, Golgi apparatus, chloroplasts, and mitochondria)</span>
In some protists, genetic information is transferred from one cell to the next. This transfer is called Internal fertilization
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-Payshence xoxo
It is intended to increase immunity against that antigen back to protective levels, after memory against that antigen has declined through time.