All cells contain this. The purpose is to direct cellular activities, including protein synthesis.

A) DNA

B) nucleus

C) ribosomes

D) plasma membrane

How chromosome number remains the same in the members of the same species?

Brings macromolecules into a cell

An ionic bond occurs when

Fenestrated capillaries a. permit the movement of very few molecules. b. are located in the central nervous system. c. occur in most of the organs of the body. d. have pores in their walls.

Studying the anatomy of different organisms allows scientists to determine how different species have evolved over time. An eagle. A butterfly.

A deletion of one base in the original segment of DNA is called a frameshift nutation what will happen to the newly synthesized protein as a result

4. Is predation a density-dependent or density-independent factor?

Why do you think a fracture involving the bones of the nasal cavity could affect the cranial cavity?

Which structure in a cell makes protein

Do Genes make up chromosomes.