A gradual change in the environment takes place slowly over a long period of time.

Which of the following events usually changes the Earth's surface most gradually?

A.

erosion

B.

lightning

C.

floods

D.

earthquakes

Traditional ideas of relatedness among organisms have been revised mainly based on

What gives animal cells thier shape and sturdiness

Which would be needed to compare the effect of two different fertilizers on plant growth? a cardboard box, a way to measure plant growth, a selection of soil types or a variety of plant species

Why is it important for people to think about mass movement when they decide how to use land?

Which cell structure is referred to as the gatekeeper because it directs substances to move into and out of the cell? a cell wall b nucleus c vacuole d cell membrane?

True or false: to get more whole grains in your diet, add a whole grain food such as oatmeal or brown rice to your regular diet.

Which of the following statements is not true about absorbency use to soak up different leagues and

DNA replication results in: Group of answer choices 2 DNA molecules that each contain a strand of the original 1 new molecule of RNA 1 new DNA molecule, 1 old molecule is conserved 2 completely new DNA molecules

5. Which is the first step of the scientific method?

Identify the four postulates of natural selection. Select all that apply. 1. Individuals in a population all possess the same traits. 2. All individuals in a population have equal reproductive success. 3. Some trait differences are heritable. 4.