Which observation proves that a cell is a eukaryote?

A. The cell has a cell membrane.

B. The cell contains a nucleus.

C. The cell uses ribosomes to create protein.

D. The cell contains DNA

What do you expect to find at meristems

A protozoan that divides to form two daughters cells just like itself would be undergoing

What gas makes up less than 1% of air but has important effects

Which is not an energy type A. non renewable B. valuable C. renewable

1. What are large areas of land or water with similar climate called? A population B community C ecosystem D biome

When earth completes a full rotation how much time has elapsea a. 1 day b. 1 month c. 1 week d. 1 year

Which is a problem associated with a declining population size? A. An aging population B. Scarce food supplies C. Limited health care

What can happen as Argentine ant colonies grow and split off to make new colonies?

The primary role of oxygen in cellular respiration is to

In snapdragons, red flower color (R) is incompletely dominant to white (r), with heterozygous plants being pink. The broad-leaf allele (B) is incompletely dominant over narrow leaves (b), with the heterozygous plants having medium-width leaves.