Most ciliates have two

A. Cilia

B. Cell walls

C. Cell membranes

D. Nuclei

How do population cycles impact trophic levels?

What is not one of the beneficial characteristics of a vegetarian diet?

What is the end result of DNA replication

Which of the following would cause gene flow? A. Mutation B. Individuals moving out of a population C. Stabilizing pressure D. Artificial selection

What is a subduction zone? a. A place where one plate is pushed down under another, such that it melts into the mantle b. A place where two plates collide and mountains form c. A place where hot material from the core rises through the mantle d.

Why does my skin itch after i take off my socks?

Is an octopus a invertebrate chordate

Birds and reptiles are both vertebrates that lay eggs but birds have beaks and reptiles have teeth. Occasionally birds have teeth but only in the embryonic stage. Which conclusion is best supported by the presence of teeth in bird embryos? A.

What were Charles Darwin's observations?

What is the by-product of fermentation in humans