Answer the following question given this paragraph: 45.2 Life Histories and Natural Selection All species have evolved a pattern of living, called a life history strategy, in which they partition energy for growth, maintenance, and reproduction. These patterns evolve through natural selection; they allow species to adapt to their environment to obtain the resources they need to successfully reproduce. There is an inverse relationship between fecundity and parental care. A species may reproduce early in life to ensure surviving to a reproductive age or reproduce later in life to become larger and healthier and better able to give parental care. A species may reproduce once (semelparity) or many times (iteroparity) in its life. Q: All species have evolved a pattern of living, called a life history strategy, in which they partition energy for growth, maintenance, and what? Choices: - variation - abundance - deatn - reproduction A:
reproduction
(Question)
Answer the following question given this paragraph: Dolphins are living organisms, so studying them is part of the life sciences. The life sciences, however, are broken down into many fields. Scientists that study dolphins and other life in the ocean are called marine biologists. Q: Scientists that study dolphins and other life in the ocean are called what? Choices: - marine geneticists - sea biologists - ocean biologists - marine biologists A:
(Answer)
marine biologists
Ques: Answer the following question given this paragraph: Q: Where do most cubozoans live? Choices: - arctic oceans - lakes - rivers - tropical oceans A:
Ans: tropical oceans
(Q).
Answer the following question given this paragraph: The reactivity of alkaline Earth metals increases from the top to the bottom of the group. That's because the atoms get bigger from the top to the bottom, so the valence electrons are farther from the nucleus. When valence electrons are farther from the nucleus, they are attracted less strongly by the nucleus and more easily removed from the atom. This makes the atom more reactive. Q: Are valence electrons attracted more or less strongly when they are farther from the nucleus? Choices: - equally - more strongly - differently - less strongly A:
(A).
less strongly
Ques:Answer the following question given this paragraph: Q: What type of simple machine is a seesaw an example of? Choices: - power - steam - single - lever A:

Ans:lever
Question: Answer the following question given this paragraph: Many of the fibers that compose the materials for our clothes are naturally occurring. Silk and cotton are examples of natural fibers. Silk is produced by the silkworm, and cotton is grown as a plant. However, several chemical processes are used to treat silk thread so that it is shrink-resistant and will repel water. Chemical dyes are frequently used to color various fabrics. Cleaning requires special soaps or chemicals used to dry-clean materials. Cotton will grow better if the boll weevil (an insect that kills the plant) is eliminated with the use of specific insecticides. Ironing of cotton is made easier by the use of chemicals that produce a permanent press in the material. Q: Silk and cotton are examples of what type of fibers? Choices: - mechanical - artificial - coral - natural A:
Answer:
natural