What is a polypeptide?

A: a folded protein molecule

B: a molecule of two amino acids

C: a bond between amino acids

D: a string of amino acids

Arsenic is a poison that binds to a molecule needed to build acetyl CoA. Based on this information, which part of cellular respiration would be stopped if arsenic were ingested? glycolysis citric acid cycle ATP synthase electron transport chain R

Organisms can reproduce sexually or asexually. There are important differences between the two modes of reproduction. Which statement correctly describes one way that asexual and sexual reproduction are different? * A.

Water molecules have a slight positive an negative charge because of the arrangement of atoms. This arrangement causes water to be A. polar C. bipolar B. nonpolar D. Tripolar

What is the result when two populations of rabbit move into the same space area

Which factors affect the flow of blood in the circulatory system

A bobcat feeding off of rabbits in the ecosystem is an example of commensalism competition mutualism parasitism predation

State the three basic premises of the modern cell theory

Mountains are usually formed by: movement of the earth's crust volcanic explosions placement of eroded land weathering away of land

Which property of water explains why seawater contains over 20 different elements?

Injuries and serious burns from hot glue guns can be reduced by what three simple precautions?