Answer the following question given this paragraph: One example of a sex-linked trait is red-green colorblindness. People with this type of colorblindness cannot tell the difference between red and green. They often see these colors as shades of brown ( Figure below ). Boys are much more likely to be colorblind than girls ( Table below ). This is because colorblindness is a sex-linked, recessive trait. Q: Red-green colorblindness is an example of what kind of trait? Choices: - dominant - fatal - adaptive - sex-linked A:
sex-linked
(Question)
Answer the following question given this paragraph: Efforts to control population growth led to the one-child policy in China, which used to include more severe consequences, but now imposes fines on urban couples who have more than one child. Due to the fact that some couples wish to have a male heir, many Chinese couples continue to have more than one child. The policy itself, its social impacts, and the effectiveness of limiting overall population growth are controversial. In spite of population control policies, the human population continues to grow. At some point the food supply may run out because of the subsequent need to produce more and more food to feed our population. The United Nations estimates that future world population growth may vary from 6 billion (a decrease) to 16 billion people by the year 2100. There is no way to know whether human population growth will moderate to the point where the crisis described by Dr. Ehrlich will be averted. Another result of population growth is the endangerment of the natural environment. Many countries have attempted to reduce the human impact on climate change by reducing their emission of the greenhouse gas carbon dioxide. However, these treaties have not been ratified by every country, and many underdeveloped countries trying to improve their economic condition may be less likely to agree with such provisions if it means slower economic development. Furthermore, the role of human activity in causing climate change has become a hotly debated socio-political issue in some developed countries, including the United States. Thus, we enter the future with considerable uncertainty about our ability to curb human population growth and protect our environment. Q: Many countries have attempted to reduce the human impact on climate change by reducing their emission of what greenhouse gas? Choices: - methane - acid dioxide - nitrous oxide - carbon dioxide A:
(Answer)
carbon dioxide
Ques: Answer the following question given this paragraph: The second stage of photosynthesis is the production of glucose from carbon dioxide. This process occurs in a continuous cycle, named after its discover, Melvin Calvin. The Calvin cycle uses CO 2 and the energy temporarily stored in ATP and NADPH to make the sugar glucose. Q: What is the second stage of photosynthesis? Choices: - pigment release - production of protein - glucose destruction - production of glucose A:
Ans: production of glucose
(Q).
Answer the following question given this paragraph: Like the cells of all eukaryotes, animal cells have a nucleus and other membrane-bound organelles (see Figure below ). Unlike the cells of plants and fungi, animal cells lack a cell wall. This gives animal cells flexibility. It lets them take on different shapes so they can become specialized to do particular jobs. The human nerve cell shown in Figure below is a good example. Its shape suits its function of transmitting nerve impulses over long distances. A nerve cell would be unable to take this shape if it were surrounded by a rigid cell wall. Q: Unlike the cells of plants and fungi, animal cells lack what? Choices: - mitochondria - flagella - nuclei - cell wall A:
(A).
cell wall
Ques:Answer the following question given this paragraph: Plants are multicellular eukaryotes. They have organelles called chloroplasts and cell walls made of cellulose. Plants also have specialized reproductive organs. Almost all plants make food by photosynthesis. Life as we know it would not be possible without plants. Q: How do most plants create food? Choices: - electrolysis - atherosclerosis - glycolysis - photosynthesis A:

Ans:photosynthesis
Answer the following question given this paragraph: An electromagnet is a solenoid wrapped around a bar of iron or other ferromagnetic material. The magnetic field of the coil magnetizes the bar, which adds to the strength of the magnetic field. Electromagnets are the strongest magnets made. Q: What are the strongest magnets made? Choices: - permanent magnets - polarized magnets - natural magnets - electromagnets A:
electromagnets