What causes a branch in a cladogram?

A) a derived trait

B) an offspring

C) an ancestral trait

D) an outgroup

What are possible causes of extinction.?

Students in Mr. Painter's class are learning about predator-prey relationships. They need to study how predator and prey populations change size in relation to one another.

What is the monomer of carbohydrates?

What is the role of mitosis in the distribution of genetic information to new cells?

Which organelle in both plant and animal cells has genetic material and controls cells activities, chloroplast, cell membrane, nucleus, cell wall

Which of the following best describes computer modeling in biology?

If an atom has six valence electrons how many does it need to obtain a full outer shell

The two amino acids animated above are joined together by a?

What is the atomic number of an atom that has 6 protons, 6 neutrons, and 6 electrons?

Is the table linear or nonlinear with the numbers - 4 - 2 0 2 8 6 2 - 2