A large number of sperm cells are produced by males every day. This large number of sperm cells increases the chance that a. so that some have the chance of surviving and reaching the egg.
b. enough sperm cells will be present to transport the egg from where it is made to where it develops into a fetus.
c. so multiple sperm can fertilize the egg in the female.

Tlymphocytes mature in the? a. thyroid gland. b. bone marrow. c. spleen. d. thymus.

Invasive species are one of the major threats to biodiversity. these species multiply quickly and compete with native species for food, sunlight, spac and other resources. on the map, determine the area where native species will have limited resources available to them due to invasion threat from invasive species threat very low low medium high very high

Which of the following statements most accurately describes convergent evolution? the process in which two similar species evolve separately from each other and share similar characteristics the process in which a single species evolves into two or more new species the process in which two entirely different species evolve in response to each other the process in which two different species evolve separately from each other but still share similar characteristics