Skin and intestine lining cells both belong to the same category, epithelial cells. However, intestinal cells have many finger-like surface protrusions, called villi, while skin cells do not. What is the most likely reason for the difference?

According to the cladogram, which organisms have roundworms as a common ancestor?

Pls ! in your opinion, what are the limiting factors that might affect the growth or diversity of our ecosystem? respond to this question in claim, evidence, reasoning format. 1. make your claim (i are the limiting factors that might affect the growth or diversity of our 2. follow the claim with 3 pieces of evidence. evidence may be taken from the reading, the videos, previous lessons, or googled answers. site sources, too. 3. use reasoning to explain why you chose your evidence.

What are antigens and antibodies? how are they involved in the body’s response to incompatible blood?