Answer the following question given this paragraph: Runoff is precipitation that flows over the surface of the land. This water may travel to a river, lake, or ocean. Runoff may pick up fertilizer and other pollutants and deliver them to a water body. In this way, runoff may pollute bodies of water. Q: What term describes precipitation that flows over the surface of the land? Choices: - waves - erosion - flood - runoff A:
runoff
(Question)
Answer the following question given this paragraph: A population is a group of organisms of the same species that live in the same area. All the genes in all the members of a population make up the population's gene pool . For each gene, the gene pool includes all the different alleles in the population. The gene pool can be described by its allele frequencies for specific genes. The frequency of an allele is the number of copies of that allele divided by the total number of alleles for the gene in the gene pool. Q: All the genes in all the members of a population make up its what? Choices: - phenotype - diversity - longevity - gene pool A:
(Answer)
gene pool
Ques: Answer the following question given this paragraph: Q: When the number of active receptors falls below that threshold, what happens to the cellular response? Choices: - it responds - it increases - it stabilizes - it ceases A:
Ans: it ceases
(Q).
Answer the following question given this paragraph: Cilia and flagella are extensions of the plasma membrane. Q: Cilia and flagella are extensions of what? Choices: - cell nucleus - protoplasm - cell wall - plasma membrane A:
(A).
plasma membrane
Ques:Answer the following question given this paragraph: Oceans are the major source of water vapor in the atmosphere. Sunlight heats water near the sea surface ( Figure below ). As the water warms, some of it evaporates. The water vapor rises into the air, where it may form clouds and precipitation. Precipitation provides the freshwater needed by plants and other living things. Q: What is the major source of water vapor in the atmosphere? Choices: - drift - sea - streams - ocean A:

Ans:ocean
Ques:Answer the following question given this paragraph: Lymphocytes: B Cells, T Cells, Plasma Cells, and Natural Killer Cells As stated above, lymphocytes are the primary cells of adaptive immune responses (Table 21.1). The two basic types of lymphocytes, B cells and T cells, are identical morphologically with a large central nucleus surrounded by a thin layer of cytoplasm. They are distinguished from each other by their surface protein markers as well as by the molecules they secrete. While B cells mature in red bone marrow and T cells mature in the thymus, they both initially develop from bone marrow. T cells migrate from bone marrow to the thymus gland where they further mature. B cells and T cells are found in many parts of the body, circulating in the bloodstream and lymph, and residing in secondary lymphoid organs, including the spleen and lymph nodes, which will be described later in this section. The human body contains approximately 10 12 lymphocytes. Q: What are the primary cells of adaptive immune response? Choices: - erythrocytes - red blood cells - white blood cells - lymphocytes A:

Ans:
lymphocytes