CLEP BIOLOGY EXAM WITH 100% CORRECT ANSWERS

What is the key limiting factor on cell size? - correct answersThe size of a cell is limited by the ratio of its surface area to volume. A cell will only remain stable if... - correct answers...the surface area of the plasma membrane maintains a balance with the volume of the cytoplasm. The salivary gland... - correct answers...secretes saliva which enters the digestive tract and aids the digestive process. Gregor Medel - correct answersStudied the relationships between traits expressed in parents and offspring and the genes that caused the traits to be expressed. In order to become an established part of an island ecosystem there must be... - correct answers...a populations large enough to ensure successful reproduction, a food source, a suitable habitat, and a source of moisture. Lymphocytes - correct answersAre cells involved in immunity and are produced in bone marrow as stem cells. B Cells - correct answersProduce antibodies into the bloodstream that find and attach themselves to foreign antigens (toxins, bacteria). T Cells - correct answersSome patrol the blood for antigens, but are also equipped to destroy antigens. They may regulate immune responses as well.