What two gas composes the largest portion of Earth's atmosphere?

water and carbon dioxide

oxygen and carbon dioxide

nitrogen and carbon dioxide

nitrogen and oxygen

Use the Punnett square to determine the ratio of offspring with: Brown body and red eyes : Brown body and brown eyes : Black body and red eyes : Black body and brown eyes :

An 18-month-old has fanning of the toes and dorsiflexion of the big toe seen on physical exam. Based on this finding the nurse should:

There are many origins of replication where replication occurs simultaneously on a single chromosome. True or False? i say true need 2nd opinion!

Name and describe the phase change that occurs when solid carbon dioxide (dry ice) is placed in an open container at room temperature

Which is the proper cite for executive orders?

What do amoeba proteus, dinoflagellate, and euglena viridis have in common? a. they all can move and make their own food b. they all can move and use eye spot to locate food c. they all can move and be heterotrophic d.

How is a scientific hypothesis best evaluated?

The overall population of a species decreased. What could have occurred to make this happen? The immigration rate increased, while the death rate decreased. The birth rate decreased, while the death rate increased.

Which of the following terrestrial biomes cannot be found in the United States? A: temperature deciduous forest B: tundra C: desert D: grassland/prairie

Which of these food sources does the bald eagle not feed on? plants fish carrion mammals