sperm used in the male side of reproduction
Throughout the young larval stages a small gland behind the brain, called the corpus allatum, secretes juvenile hormone (also known as neotenin).
Answer:
Oxygen
Explanation:
The formula for cellular respiration is oxygen + glucose -> water, carbon dioxide, energy. You can already cross out A and D because they aren't in the formula, so you have two left, water and oxygen. The reason why it is oxygen and not water is because without oxygen you can't even have water. also, I just got this right on my test :-)
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Below are the choices that can be found from other sources:
<span>A.) DNA can store genetic information and most likely appeared before RNA.
B.) DNA is more linear than RNA and most likely appeared before RNA.
C.) RNA can catalyze biological reactions and most likely appeared before DNA.
D.) RNA is more stable than DNA and most likely appeared before DNA.
</span>
i think the answer is A.
