Answer the following question given this paragraph: Most ocean mollusks have a gill or gills to absorb oxygen from the water. Q: What do ocean mollusks use to absorb oxygen from the water? Choices: - shells - scales - pores - gills A:
gills
(Question)
Answer the following question given this paragraph: Mars is the fourth planet from the Sun. It has two small, irregular moons. Mars is red because of rust in its soil. Mars has the largest mountain and the largest canyon in the solar system. Q: What is the fourth planet from the sun? Choices: - Pluto - Saturn - Mercury - mars A:
(Answer)
mars
Ques: Answer the following question given this paragraph: You can see an example of a negative feedback loop in Figure below . It shows how levels of thyroid hormones regulate the thyroid gland. This loop involves the hypothalamus and pituitary gland as well as the thyroid gland. Low levels of thyroid hormones in the blood cause the release of hormones by the hypothalamus and pituitary gland. These hormones stimulate the thyroid gland to secrete more hormones. The opposite happens with high levels of thyroid hormones in the blood. The hypothalamus and pituitary gland stop releasing hormones that stimulate the thyroid. Q: Low levels of thyroid hormones in the blood cause the release of what by the hypothalamus and pituitary gland? Choices: - acids - bases - enzymes - hormones A:
Ans: hormones
(Q).
Answer the following question given this paragraph: One such strategy is to allow the wind to carry the seeds. With special adaptations in the seeds, the seeds can be carried long distances by the wind. For example, you might have noticed how the "fluff" of a dandelion moves in the wind. Each piece of fluff carries a seed to a new location. If you look under the scales of pine cone, you will see tiny seeds with "wings" that allow these seeds to be carried away by the wind. Maple trees also have specialized fruits with wing-like parts that help seed dispersal ( Figure below ). Q: Why are seeds of a pine cone easily carried by the wind and dispersed? Choices: - seeds are sticky - seeds are small - seeds are dense - seeds have wings A:
(A).
seeds have wings
Ques:Answer the following question given this paragraph: Many mutations are not caused by errors in replication. Mutations can happen spontaneously, and they can be caused by mutagens in the environment. Some chemicals, such as those found in tobacco smoke, can be mutagens. Sometimes mutagens can also cause cancer. Tobacco smoke, for example, is often linked to lung cancer. Q: What can happen spontaneously or as a result of mutagens in the environment? Choices: - lesions - combustion - traits - mutations A:

Ans:mutations
Answer the following question given this paragraph: Butterfly fish like this one have "fake" eyespots. The eyespots may confuse larger predators long enough for the butterfly fish to escape. Q: Why do butterfly fish have fake eyespots? Choices: - aerodynamic purposes - mating purposes - random evolution - confuse predators A:
confuse predators