Answer the following question given this paragraph: Plants alternate between diploid-cell plants and haploid-cell plants. This is called alternation of generations , because the plant type alternates from generation to generation. In alternation of generations, the plant alternates between a sporophyte that has diploid cells and a gametophyte that has haploid cells. Q: When plant type alternates from generation to generation what is this called? Choices: - turbidity of generation - differentiation of generation - change in generation - alternation of generation A:
alternation of generation
(Question)
Answer the following question given this paragraph: Q: Soils with higher capacities generally have a larger reserve of what? Choices: - hydrogen nutrients - water - protein - mineral nutrients A:
(Answer)
mineral nutrients
Ques: Answer the following question given this paragraph: Water pollution happens when contaminants enter water bodies. Contaminants are any substances that harm the health of the environment or humans. Most contaminants enter the water because of humans. Surface water (river or lake) can be exposed to and contaminated by acid rain, storm water runoff, pesticide runoff, and industrial waste. This water is cleaned somewhat by exposure to sunlight, aeration, and microorganisms in the water. Groundwater (private wells and some public water supplies) generally takes longer to become contaminated, but the natural cleaning process also may take much longer. Groundwater can be contaminated by disease-producing pathogens, careless disposal of hazardous household chemical-containing products, agricultural chemicals, and leaking underground storage tanks. Q: What "kind" of water may take longer to become contaminated than surface water, while the natural cleaning process may take longer? Choices: - lake water - spring water - dam water - groundwater A:
Ans: groundwater
(Q).
Answer the following question given this paragraph: Mass measures the amount of matter in a substance or an object. The basic SI unit for mass is the kilogram (kg). Q: What is the the basic si unit for mass? Choices: - pound - volume - density - kilogram (kg) A:
(A).
kilogram (kg)
Ques:Answer the following question given this paragraph: CFCs break down ozone in the stratosphere. Q: What man-made substance tends to break down ozone in the stratosphere? Choices: - gasoline - steel - plastic - cfcs A:

Ans:cfcs
Ques: Answer the following question given this paragraph: Other Types of Chemical Signaling In endocrine signaling, hormones secreted into the extracellular fluid diffuse into the blood or lymph, and can then travel great distances throughout the body. In contrast, autocrine signaling takes place within the same cell. An autocrine (auto= "self") is a chemical that elicits a response in the same cell that secreted it. Interleukin-1, or IL-1, is a signaling molecule that plays an important role in inflammatory response. The cells that secrete IL-1 have receptors on their cell surface that bind these molecules, resulting in autocrine signaling. Local intercellular communication is the province of the paracrine, also called a paracrine factor, which is a chemical that induces a response in neighboring cells. Although paracrines may enter the bloodstream, their concentration is generally too low to elicit a response from distant tissues. A familiar example to those with asthma is histamine, a paracrine that is released by immune cells in the bronchial tree. Histamine causes the smooth muscle cells of the bronchi to constrict, narrowing the airways. Another example is the neurotransmitters of the nervous system, which act only locally within the synaptic cleft. Q: Autocrine signaling takes place within the same what? Choices: - tissue type - proteins - organ - cell A:
Ans:
cell