What is the definition of meteor

Earth's continental plates can move as little as 3 centimeters per year. The Quaternary period has lasted for 2 million years. What is the minimum distance in kilometers that a continental plate has moved during the Quaternary period? a.

Natural selection is defined as A. the changes that occur in an organism over its lifespan. B. the changes in the characteristics within a population that lead to survival. C.

What changes during the lunar cycle?

Green seed color is recessive in pea plants. During fertilization, a pea plant receives one recessive gene for seed color from a sperm cell. The plant produces green seeds. The gene from the egg cell must have been: -recessive -dominant -cannot tell

What is one difference between oogenesis and spermatogenesis? A. Oogenesis occurs in females, but spermatogenesis occurs in males. B. Oogenesis starts at puberty, but spermatogenesis starts before birth. C.

An agent used to reduce the number of bacteria on a toilet would most accurately be called a (n) An agent used to reduce the number of bacteria on a toilet would most accurately be called a (n) disinfectant. fungicide. aseptic. virucide. antiseptic.

True or false? most antigens are large, complex molecules that are not normally present in the body. a. True b. False

on October 6, both fin and humpback whales were heard in the same area at 1:30 am and at 2:30 am why do you think both species might have made noises at the same time.

The broadest classification level for organisms is A. kingdom, which includes Archaea, Bacteria, and Eukarya. B. kingdom, which includes Animalia, Plantae, and Fungi. C. domain, which includes Archaea, Bacteria, and Eukarya. D.

These are all highly contagious foodborne illnesses that result from biological contaminants, except: