Answer the following question given this paragraph: Light includes infrared light, visible light, and ultraviolet light. As you can see from the Figure above , light falls roughly in the middle of the electromagnetic spectrum. It has shorter wavelengths and higher frequencies than microwaves, but not as short and high as X rays. Q: What falls roughly in the middle of the electromagnetic spectrum, having shorter wavelengths and higher frequencies than microwaves, but not as short and high as x rays? Choices: - radio waves - ultraviolet light - gamma rays - light A:
light
(Question)
Answer the following question given this paragraph: Pressure is the result of force acting on a given area. It can be represented by the equation:. Q: What property is the result of force acting on a given area? Choices: - vaccuum - pull - resistance - pressure A:
(Answer)
pressure
Ques: Answer the following question given this paragraph: The fetus is connected to the placenta through the umbilical cord. Q: What connects the fetus to the placenta? Choices: - fallopian tube - microbial cord - eustachian tube - umbilical cord A:
Ans: umbilical cord
(Q).
Answer the following question given this paragraph: plantsthe pterophytesfrom which modern ferns are derived. The lifecycle of bryophytes and pterophytes is characterized by the alternation of generations, like gymnosperms and angiosperms; what sets bryophytes and pterophytes apart from gymnosperms and angiosperms is their reproductive requirement for water. The completion of the bryophyte and pterophyte life cycle requires water because the male gametophyte releases sperm, which must swimpropelled by their flagellato reach and fertilize the female gamete or egg. After fertilization, the zygote matures and grows into a sporophyte, which in turn will form sporangia or "spore vessels. " In the sporangia, mother cells undergo meiosis and produce the haploid spores. Release of spores in a suitable environment will lead to germination and a new generation of gametophytes. In seed plants, the evolutionary trend led to a dominant sporophyte generation, and at the same time, a systematic reduction in the size of the gametophyte: from a conspicuous structure to a microscopic cluster of cells enclosed in the tissues of the sporophyte. Whereas lower vascular plants, such as club mosses and ferns, are mostly homosporous (produce only one type of spore), all seed plants, or spermatophytes, are heterosporous. They form two types of spores: megaspores (female) and microspores (male). Megaspores develop into female gametophytes that produce eggs, and microspores mature into male gametophytes that generate sperm. Because the gametophytes mature within the spores, they are not free-living, as are the gametophytes of other seedless vascular plants. Heterosporous seedless plants are seen as the evolutionary forerunners of seed plants. Seeds and pollentwo critical adaptations to drought, and to reproduction that doesn't require waterdistinguish seed plants from other (seedless) vascular plants. Both adaptations were required for the colonization of land begun by the bryophytes and their ancestors. Fossils place the earliest distinct seed plants at about 350 million years... Q: Release of spores in a suitable environment will lead to germination and a new generation of what? Choices: - assemblages - seeds - filaments - gametophytes A:
(A).
gametophytes
Ques:Answer the following question given this paragraph: A change in the sequence of bases in DNA or RNA is called a mutation . Does the word mutation make you think of science fiction and bug-eyed monsters? Think again. Everyone has mutations. In fact, most people have dozens or even hundreds of mutations in their DNA. Mutations are essential for evolution to occur. They are the ultimate source of all new genetic material in a species. Although most mutations have no effect on the organisms in which they occur, some mutations are beneficial. Even harmful mutations rarely cause drastic changes in organisms. Q: A change in the sequence of bases in dna or rna is called a what? Choices: - infection - isolation - accumulation - mutation A:

Ans:mutation
Answer the following question given this paragraph: The plasma membrane also contains other molecules, primarily other lipids and proteins. The green molecules in Figure above , for example, are the lipid cholesterol. Molecules of cholesterol help the plasma membrane keep its shape. Many of the proteins in the plasma membrane assist other substances in crossing the membrane. Q: What helps the plasma membrane keep its shape? Choices: - molecules of carbohydrates - molecules of oxygen - cytoplasm - molecules of cholesterol A:
molecules of cholesterol