Early amino acids may have originated

a Deep in the crust

b At hydrothermal vents

C Elsewhere in the solar

system

d All of these

Which type of molecule do whales use for energy storage and insulation?

The size of a population increases if the number of individuals added to the population is equal to the number of individuals leaving the population True or False?

Animals eat plant to get?

Which statement is not an example of intracellular communication? A muscle cell maintains homeostasis. A nerve cell stimulates a muscle cell to contract. A signal is translated to cause muscle contraction. A muscle cell action is coordinated.

How can humans building a drainage system affect the water cycle?

Which u. s. states are most likely to oppose strict permit requirements under the Clean Air Act

In a text area below compare and contrast a cell membrane and a cell wall

Which is an advantage of sexual reproduction? a. two parents are required. b. only one parent is required. c. it leads to genetically diverse offspring. d. it leads to genetically identical offspring.

How are three different types of consumers alike and how are they different

What do a door and a venus flytrap leaf have in common