The protist ancestor to animals appears to have belonged to which group?

A. euglenoids
B. foraminifera
C. choanoflagellates
D. dinoflagellates


Answer: C

Biology & Microbiology

You might also like to view...

You are a parasitologist interested in roundworms affecting wolves. If you know two populations of wolves were separated long enough ago for them to speciate, would you expect their roundworms (derived from a common ancestor) to speciate as well?

What is this process called? A. yes; allopatric speciation B. yes; co-speciation C. no; dispersal D. no; natural selection

Biology & Microbiology

In science the word "theory"

a. signifies that a hypothesis has been tested and proven over a period of time. b. means that a scientist has a hunch something is true. c. has essentially the same meaning as "hypothesis." d. carries a considerable amount of doubt as to its validity. e. is an explanation that has been published.

Biology & Microbiology

Infectious proteins that are heat resistant and that cannot be destroyed by ultraviolet light or most chemicals are known as ________

Fill in the blank(s) with correct word

Biology & Microbiology

A redox reaction involves the transfer of

A) an electron. B) carbon dioxide. C) a hydrogen ion. D) water. E) oxygen.

Biology & Microbiology