What is a light year?

a. A measure of time in space

b. The distance light travels in a year

c. The distance to Alpha Centauri

d. A term used only in science fiction

Which kingdom contains organisms with no nucleus that can survive in extreme environments? A: Fungi B: Archaebacteria C: Protista D: Eubacteria

Many nonchordates have tails. What feature differentiates a chordate's tail from that of a nonchordate?

What do all carbon atoms (and ions) have in common

Which best explains how the human body obtains energy from food?

Cells that have the same function are organized into

True or false? bupropion is an antidepressant medication that is useful as a smoking cessation aid.

A new island forms due to an underwater volcano. Birds from the mainland colonized the island. This is an example of a. Behavioral isolation b. Reproductive isolation c. Geographic isolation

What is the differences between prokaryotic and eukaryotic ... ?

A finger-like projection of the cell membrane and cytoplasm use to catch food and/or move (false-foot)

Who was one of the first scientist to use numbers to look for patterns in experimental data