From which source is it thought that chloroplasts in algae originated

Wo cells in the same organism differ only in the number of chloroplasts they contain. the first cell has multiple chloroplasts, and the second cell has very few.

How might an athlete use vital lung capacity compared to a non athlete

The epithelial tissue found in areas subject to considerable friction and abuse, such as the skin, is

Viruses are classified by their shape and cell wall proteins. True False

What is one major effect of the Earth's geologic plates? They change the surface of the earth They increase the frequency of thunderstorms They make hurricanes more severe They cool off the oceans.

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

what will happen to a base isolated building when seismic wave strike the building during an earthquake

The shape and size of a birds beak would mostly be affected by what environmental limiting factor

Why do you think scientists use the word mutate to describe the genetic process shown in the video