Answer the following question given this paragraph: In some cases, a population of one species disperses throughout an area, and each finds a distinct niche or isolated habitat. Over time, the varied demands of their new lifestyles lead to multiple speciation events originating from a single species, which is called adaptive radiation. From one point of origin, many adaptations evolve causing the species to radiate into several new ones. Island archipelagos like the Hawaiian Islands provide an ideal context for adaptive radiation events because water surrounds each island, which leads to geographical isolation for many organisms (Figure 11.16). The Hawaiian honeycreeper illustrates one example of adaptive radiation. From a single species, called the founder species, numerous species have evolved, including the eight shown in Figure 11.16. Q: In adaptive radiation, what is the name of the initial species that then subsequently becomes multiple other ones? Choices: - pioneer - father - Mother - founder A:
founder
(Question)
Answer the following question given this paragraph: Because of the link between high levels of cholesterol and heart disease, it is commonly seen by the general public as a "bad" molecule. However, cholesterol plays a vital role in the body, as both a structural component of cell membranes and a metabolic precursor to various steroid hormones. Only about 30% of the cholesterol in our bodies comes from our diet; the rest is synthesized in the liver, intestines, adrenal glands, and reproductive organs. The same acetyl CoA molecule that provides biochemical energy can also be used by the body to synthesize cholesterol. There are approximately twenty-two steps involved in the formation of cholesterol from acetyl CoA. Q: What molecule can be used by the body to synthesize cholesterol ? Choices: - ethylene coa - hydroxide coa - chloride coa - acetyl coa A:
(Answer)
acetyl coa
Ques: Answer the following question given this paragraph: Microfilaments , shown as (b) in Figure below , are made of two thin actin chains that are twisted around one another. Microfilaments are mostly concentrated just beneath the cell membrane, where they support the cell and help the cell keep its shape. Microfilaments form cytoplasmatic extentions, such as pseudopodia and microvilli , which allow certain cells to move. The actin of the microfilaments interacts with the protein myosin to cause contraction in muscle cells. Microfilaments are found in almost every cell, and are numerous in muscle cells and in cells that move by changing shape, such as phagocytes (white blood cells that search the body for bacteria and other invaders). Q: Microfilaments are mostly concentrated just beneath what? Choices: - the nucleus - the cell wall - the cytoplasm - the cell membrane A:
Ans: the cell membrane
(Q).
Answer the following question given this paragraph: Most ocean waves are caused by winds. The size of a wave depends on how fast, how far, and how long the wind blows. Tsunamis are waves caused by earthquakes. Q: What is the cause of most ocean waves? Choices: - tides - Magnetic pull - Gravity - winds A:
(A).
winds
Ques:Answer the following question given this paragraph: During sexual reproduction, two haploid gametes join in the process of fertilization to produce a diploid zygote. Meiosis is the type of cell division that produces gametes. It involves two cell divisions and produces four haploid cells. Q: What is the type of cell division that produces gametes called? Choices: - mitosis - electrolysis - fertilization - meiosis A:

Ans:meiosis
Ques: Answer the following question given this paragraph: Lastly, keep in mind the small size of bacteria. Together, all the bacteria in your gut may weight just about 2 pounds. Q: How much can the bacteria in your gut weigh? Choices: - 2.2 pounds - 2.15 pounds - 2 kilograms - 2 pounds A:
Ans:
2 pounds