Answer the following question given this paragraph: Polar Bears. Thick fur and a layer of blubber keep polar bears warm in their Arctic ecosystem. Why do you think their fur is white? Why might it be an adaptation in an Arctic biome?. Q: What type of ecosystem do polar bears live in? Choices: - tropical - oceanic - natural - arctic A:
arctic
(Question)
Answer the following question given this paragraph: Genes located on the sex chromosomes are called sex-linked genes . Most sex-linked genes are on the X chromosome, because the Y chromosome has relatively few genes. Strictly speaking, genes on the X chromosome are X-linked genes , but the term sex-linked is often used to refer to them. Q: What are genes located on the sex chromosomes called? Choices: - autosomes - diploid genes - dimorphism - linked genes - sex-linked genes A:
(Answer)
sex-linked genes
Ques: Answer the following question given this paragraph: Water cycling is extremely important to ecosystem dynamics. Water has a major influence on climate and, thus, on the environments of ecosystems, some located on distant parts of the Earth. Most of the water on Earth is stored for long periods in the oceans, underground, and as ice. Figure 46.13 illustrates the average time that an individual water molecule may spend in the Earth's major water reservoirs. Residence time is a measure of the average time an individual water molecule stays in a particular reservoir. A large amount of the Earth's water is locked in place in these reservoirs as ice, beneath the ground, and in the ocean, and, thus, is unavailable for short-term cycling (only surface water can evaporate). Q: What important liquid is stored throughout the earth in the oceans, underground, and in ice? Choices: - oil - lava - air - water A:
Ans: water
(Q).
Answer the following question given this paragraph: The first stage of cellular respiration is glycolysis . It takes place in the cytosol of the cytoplasm. Q: What is the first stage of cellular respiration? Choices: - electron transport - Krebs cycle - photosynthesis - glycolysis A:
(A).
glycolysis
Ques:Answer the following question given this paragraph: Q: Mechanisms for establishing cellular asymmetries include morphogen gradients, localized determinants, and what other type of interactions? Choices: - reductive - conductive - electromagnetic - inductive A:

Ans:inductive
Answer the following question given this paragraph: Plasma is a state of matter that resembles a gas but has certain properties that gases do not have. Like a gas, plasma consists of particles of matter than can pull apart and spread out, so it lacks a fixed volume and a fixed shape. Unlike a gas, plasma can conduct electricity and respond to a magnetic field. That's because plasma consists of electrically charged particles called ions, instead of uncharged particles such as atoms or molecules. This gives plasma other interesting properties as well. For example, plasma glows with colored light when electricity passes through it. You can learn more about plasma at this URL: http://www. youtube. com/watch?v=VkeSI_B5Ljc. Q: What is the state of matter that resembles a gas, but is made of ions, giving it different properties than a typical gas? Choices: - gamma - vapor - acid - plasma A:
plasma