What is the most likely cause of plate movement?

A) radiation from the sun

B) cold air currents on earths surface

C) heat convection within the earth

D) movement of ice sheets

Why can fertilization happen during sexual contact without ejaculation?

The anemia resulting from a deficiency of either vitamin B 12 (cobalamin) or folate is caused by a disruption in DNA synthesis of the blast cells in the bone marrow that produces very large abnormal bone marrow cells called megaloblasts.

Clear-cutting usually leads to fewer changes in the forest ecosystem than selective cutting. True or False

What are the three major types of neurons in the nervous system?

Which takes longer, primary succession ot secondary succession? explain?

Which organ in alimentary canal starts digestion of proteins?

Why do animals in the alpine generally have higher levels of hemoglobin?

In an expirment on traffic, 20 cars are observed driving down a street in 4 hours. What rate of traffic was observed in this experiment? A. 5 Cars per hour B. 2 C. 4 Hours D. 0.2 hours per car

The condition in which the bodys internal enviroment is kept stable is called

Imagine that dna replication begins in an escherichia coli (e. coli) bacterium at a single origin and that dna polymerase synthesizes one strand of dna at a rate of 60000 bases per minute in escherichia coli (e. coli) bacteria and that e.