Answer the following question given this paragraph: The male reproductive system consists of structures that produce sperm and secrete testosterone. Q: What does the male reproductive system consist of? Choices: - structures that collect urine - structures that produce ova - organs that produce estrogen - structures that produce sperm and secrete testosterone A:
structures that produce sperm and secrete testosterone
(Question)
Answer the following question given this paragraph: Renewable resources can be renewed as they are used. An example is timber , which comes from trees. New trees can be planted to replace those that are cut down. Sunlight is a renewable resource. It seems we will never run out of that! What are some other renewable resources?. Q: What are resources that don't run out? Choices: - residual resources - general resources - orbital resources - renewable resources A:
(Answer)
renewable resources
Ques: Answer the following question given this paragraph: Chemistry in Everyday Life Statue of Liberty: Changing Colors The Statue of Liberty is a landmark every American recognizes. The Statue of Liberty is easily identified by its height, stance, and unique blue-green color (Figure 17.16). When this statue was first delivered from France, its appearance was not green. It was brown, the color of its copper "skin. " So how did the Statue of Liberty change colors? The change in appearance was a direct result of corrosion. The copper that is the primary component of the statue slowly underwent oxidation from the air. The oxidation-reduction reactions of copper metal in the environment occur in several steps. Copper metal is oxidized to copper(I) oxide (Cu2O), which is red, and then to copper(II) oxide, which is black. Q: Changes in the color of the statue of liberty owe to oxidation-reduction reactions, or what simpler term? Choices: - copper - oxygen - immersion - corrosion A:
Ans: corrosion
(Q).
Answer the following question given this paragraph: Sexual reproduction occurs in a cycle. Diploid parents produce haploid gametes that unite and develop into diploid adults, which repeat the cycle. This series of life stages and events that a sexually reproducing organism goes through is called its life cycle . Sexually reproducing organisms can have different types of life cycles. Three are described in the following sections. Q: This series of life stages and events that a sexually reproducing organism goes through is called its what? Choices: - maturation cycle - development cycle - formative period - life cycle A:
(A).
life cycle
Ques:Answer the following question given this paragraph: Q: What organism is an important pioneer on cleared rock and soil surfaces, such as volcanic flows and burned forests? Choices: - cysts - algae - pigment - lichen A:

Ans:lichen
Question: Answer the following question given this paragraph: The two ribosomal subunits are named base on their sedmentation rate in a centrifuge. The unit of measurement is the Svedberg unit , a measure of the rate of sedimentation, not the size. This accounts for why fragment names do not add up (70S is made of 50S and 30S). Q: The svedberg unit is a measure of the rate of what, which is tested in a centrifuge? Choices: - precipitation - temperature - secretion - sedimentation A:
Answer:
sedimentation