What is the probability that a seed from a parent plant of genotype Rr will carry the r gene?

A. 1

B. 1/2

C. 1/4

D. 0

During the g2 phase, the cell is preparing for mitosis. using your knowledge of cellular organelles and molecules, which molecule is produced in the highest quantity during the g2 phase?

Which compound was abundant in Precambrian Earth's oceans, before complex life evolved on Earth? A. dissolved oxygen B. dissolved carbon dioxide C. dissolved methane D. dissolved ammonia

What do animal-like and fungus-like protists have in common? Animal-like and fungus-like protists are all unicellular. Animal-like and fungus-like protists are all autotrophic. Animal-like and fungus-like protists are all heterotrophic.

Which flagella allows spirochetes to move in a corkscrew motion?

Define meiosis. Describe the main stages in the process.

List 4 observations that indicate that a chemical reaction may be taking place

Which statement describes the light reaction of photosynthesis? A. Water molecules are combined to make food. B. Air and water create energy for a plant. C. Carbon dioxide is put together with glucose. D. Water molecules are split apart.

4. Where are the two places we find receptor proteins? Inside the target cell, target cell plasma membrane Signaling cell plasma membrane, inside the target cell Signaling cell plasma membrane, ligand Target cell plasma membrane, signaling cell

What most directly causes hypertension? lack of blood flow to the heart a weakening of a blood vessel wall excessive force of blood pumping injury to heart muscle

On the coast, strong sea breezes move cool air into the land to replace warm, rising air. This often causes A) cyclones. B) hurricanes. C) thunderstorms. D) tornadoes.