If an isolated population’s birthrate is the same year after year, why are a greater number of individuals added to the population in each successive year?
question 11 options:

the effective birthrate is increasing each year.

the carrying capacity is increasing each year.

the rate applies to more individuals each year.

fewer members emigrate away each year.

Why do you think the puppy litter was all dark-haired?

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables