A mechanism of evolution that suggests changes in the gene pool of a population are due to chance is genetic drift natural selection gene flow evolution

A certain widely distributed mammalian species remained unchanged for about 30 million years. Most members of this species lived on a fertile plain, but some members (that were less well adapted) survived in low numbers in the surrounding mountains.

Attraction of water molecules to other water molecules A. adhesion B. Capillary action C. cohesion D. hydrogen Bond E. expands

Why food webs are more useful?

Which trophic level stores the greatest/least amount of energy?

Which is not a method that protists can use to move cilia spores flagella pseudopods

Which strategy best describes a way to address polluted air? Check all that apply. 1 replace the type of chemicals used in industrial processes 2 minimize the burning of fossil fuels used at industrial plants 3 study the effects of mold exposure on

When a muscle is unable to respond to stimuli temporarily, it is in which of the following periods? When a muscle is unable to respond to stimuli temporarily, it is in which of the following periods?

Which of the following planets has the largest orbital radius compared to the others? A. Jupiter B. mercury C. Saturn D. Venus

In which phylum do we first see the tissue level organization

Suppose a dominant allele (N) codes for a big nose and a recessive allele (n) codes for a small nose. Imagine that an organism receives a dominant allele from its mom and a dominant allele from its dad.