True/False: Chromosomes contain genes that are made of DNA and the order of nitrogen bases control
how the traits will be expressed (show up).
True
False

Assume that a student is given two different models of bacteria, with one model consisting of big bacteria and the other consisting of small bacteria. how can the student demonstate the theory of endosymbiosis using the models

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

Which of the following are causes of coastal erosion? check all that apply. beach grasses and other plants trap windblown sand. wave action carves away the coastline. groundwater under pressure is forced to earth’s surface. artificial structures stop the natural flow of sand along the coast. underground caves collapse as bedrock is dissolved.