<span>Yes, if the photo receptor cells and simple eyes that preceded it were useful to the animals in which they arose.</span>
I think the correct answer from the choices listed above is the second option. The enzyme pepsin that is present in the stomach denature in the intestine due to the alkaline environment of the intestine. This is because pepsin has an optimum pH that is very low which is ideal for the acidic conditions of the stomach.
Answer:
Kingdom 4
Explanation:
This kingdom is the only one with the ability to be heterotrophic or autotrophic.
<em>A placental mammal develops before its body systems can function independently;</em>
A. Inside it's mothers body
<u>Mammals don't come from eggs, and the term placental mammal means it has a placenta. It comes out when our mothers deliver. A marsupial mammal forms in a pouch, so the answer is inside it's mothers body </u>
