What is one biotic factor that affects the size of a population in an ecosystem?

a) local geography

b) number of predators present

c) average yearly temperature

d) average yearly precipitation

How many chromosomes are in a gold fish?

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute