The process of natural selection occurs when __.

some individual organisms are better able to find food in their habitat

only a certain color of a species will have offspring.

organisms within a species,

diseased organisms in a habitat die.

Which is an example of a scientific hypothesis?

According to the fossil record above, during which era did mammals first appear?

Cattle depend on microorganisms in their digestive tract to digest the cellulose in their diets. The cattle and the microorganisms are? A. carnivores. B. mutualistic symbionts. C. herbivores. D. parasitic symbionts.

Which statement is least likely to support the Endo symbiotic theoryk

What is the term for shedding the endometrium

Using streamlined shapes in designing aircrafts

Which of the following statements about a compound is true? Only the physical properties of a compound are usually the same as those of the elements from which it is formed.

Students are reviewing the structure of DNA in preparation for a class test tomorrow. They demonstrate understanding of this information when they identify which of the following as a nitrogenous base found in DNA? Select all that apply.

Which organisms are prokaryotes a. Archaea b. Fungi c. Protist d. Plants

A population of lizards that originally had no predators lived on a small isolated island. Predators of the lizards were accidently introduced to the island from a visiting ship.