The organisms that form the base of most open-ocean food webs are

a. fish.

b. coral.

c. plankton.

d. kelp.

Why do certain traits exist within a population? Traits confer some advantage. Certain traits build up over time. Each trait expresses variable fitness under equilibrium. Traits usually result in sexual selection.

How are populations related to communities?

Which two atoms form covalent bond?

how does the immune system use nonspecific responses to protect the body from disease? give two examples of responses.

About 12,000 years ago, a mass extinction event occurred and 75% of the world's large mammal species were eliminated.

Which statement is true about BRCA1 and BRCA2 genes? These genes were discovered in 1953. Cancerous tumors often form on these genes. People can be tested for mutations on these genes. Mutations of these genes lead to diabetes.

Skin cell should generate an exact copy of itself. Through which process would this occur?

Which branches of natural science include the study of an organism that lived 10 million years ago? A. physical science and Earth science B. life science and Earth science C. life science and physical science

Which of the following promotes bone resorption

An object has a mass of 8.00 kg. what is the force due to gravity in the object