which of the following is found in both prokaryotic cells and eukaryotic cells? a)nucleus b)cytoplasm c)mitochondria d)chloroplast

When is your respiration rate likely to change? a. when your intestines are digesting b. when your cells have too much glucose c. when your cells need more oxygen d. when your liver is working after a meal

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic

What do scientific models predict will happen to earth's temperature if current trends continue unmitigated? a. earth will heat and cool in a natural cycle b. earth will heat up and then return to an ice age c. earth will continue to warm at a rate of 0.25 c per decade d. earth will start to cool at a rate of 0.25 c per decade appex