Answer the following question given this paragraph: After a mass extinction, many habitats are no longer inhabited by organisms because they have gone extinct. With new habitats available, some species will adapt to the new environments. Evolutionary processes act rapidly during these times. Many new species evolve to fill those available habitats. The process in which many new species evolve in a short period of time to fill available niches is called adaptive radiation . At the end of this period of rapid evolution, the life forms do not look much like the ones that were around before the mass extinction. One example came after the extinction of the dinosaurs. Mammals underwent adaptive radiation and became the dominant life form. Although they lived in the habitats the dinosaurs had lived in, they didn't look much like the dinosaurs. Q: What is the process in which many new species evolve in a short period of time to fill available niches called? Choices: - adaptation - learned behavior - spontaneous mutation - adaptive radiation A:
adaptive radiation
(Question)
Answer the following question given this paragraph: An example of a lens is a hand lens, also called a magnifying glass. This type of lens makes objects look bigger than they really are. How do you think this happens?. Q: What is another term for a hand lens? Choices: - projecting glass - seeing glass - traversing glass - magnifying glass A:
(Answer)
magnifying glass
Ques: Answer the following question given this paragraph: Many lakes are not natural, but are human-made. People dam a stream in a suitable spot. Water backs up behind the dam, creating a lake. These lakes are "reservoirs" ( Figure below ). Q: A man made lake is known as what? Choices: - Pond - Lake - Lagoon - resevoirs A:
Ans: resevoirs
(Q).
Answer the following question given this paragraph: Polar bonds contain atoms that possess either a partial positive or a partial negative charge. Q: What type of bonds contain atoms that possess either a partial positive or a partial negative charge? Choices: - hot bonds - ionic bonds - geologic bonds - polar bonds A:
(A).
polar bonds
Ques:Answer the following question given this paragraph: The pea-sized pituitary gland is just below the hypothalamus and attached directly to it. The pituitary receives hormones from the hypothalamus. It also secretes its own hormones. Most pituitary hormones control other endocrine glands. That's why the pituitary gland is called the "master gland" of the endocrine system. Table below lists several pituitary hormones and what they do. Q: The pituitary gland is called the "master gland" of what system? Choices: - hormonal - digestive - nervous - endocrine A:

Ans:endocrine
Answer the following question given this paragraph: Stems are needed for transport and storage. Their vascular tissue carries water and minerals from roots to leaves. It carries dissolved sugar from the leaves to the rest of the plant. Without this connection between roots and leaves, plants could not survive high above the ground in the air. In many plants, ground tissue in stems also stores food or water during cold or dry seasons. Q: What part of the plant, in general, is responsible for transport and storage of water and minerals? Choices: - leaves - pistil - petals - stems A:
stems