Biology » Page 103

Biology

How does the metabolism of sucrose differ from the metabolism of glucose?

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Biology

Which muscles would a baby gain voluntary control over last during development?

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Macie Stephenson

Biology

Sammi was born 3 days ago and has lost 3 percent of her body weight. should her parents be concerned?

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Alessandra Noble

Biology

Which factor increases the air resistance on an object?

A) decreasing air pressure

B) decreasing the density of the object

C) less surface area facing the force of air

D) more surface area facing the force of air

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Biology

Why are sedimentary rocks almost always deposited in flat strata?

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Biology

Scientists can produce many plants in the lab by cloning; culturing a few plant cells in a test tube of chemical medium. Few cells grow into a new plant. It is easy for scientists to produce many plants from just a few cells. Where would you add "cloning" to the Venn diagram? A) Meiosis B) Mitosis C) Center - both mitosis and meiosis D) Neither - Outside of both circles

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Biology

The human population began to increase noticeably around 10,000 years ago. what has been hypothesized as the reason for the population increase at that time?

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Biology

Osmosis is a diffusion process that moves__ through the membrane from higher to lower concentration

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Biology

Each type of mineral has a chemical composition that is

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Biology

Are all insects arthrapods?

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Biology

What is a pigment cells that change the color of an organism, allowing it to camouflage?

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Biology

Researchers want to know if the concentration of ammonia in the James River is above the safe level for consumption. They take samples and develop a data set. Their null hypothesis is that the sample mean is > 6 (unsafe) and their alternative hypothesis is that the sample mean is < 6. Which of the following should they use in testing their hypothesis?

A) a one-tailed test

B) a two-tailed test

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Biology

What process produces usable energy in cells

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Biology

Whales have what seem like remnants of a pelvis and femur, as shown here.

What are these structures an example of?

transitional structures

analogous structures

vestigial structures

adapted structures

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Biology

In humans, having freckles is dominant to no freckles. In a genetic cross of a homozygous dominant parent with a homozygous recessive parent, what percent of the offspring should have freckles?

a. 100

b. 75

c. 50

d. 20

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