Exam 1: Biology

Similar structures are present in the embryos of fish, chickens, and rabbits. In fish, these structures develop into gills, but in chickens and rabbits, they either disappear or develop into other body parts later in embryonic development.Which of the statements below best explains the presence of these structures in the embryos of all three species?

(Multiple Choice)

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Question 161

Which of the following explains why legume plants are less likely than other terrestrial plants to experience nitrogen limitation?

(Multiple Choice)

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Question 162

A portion of one strand of a DNA molecule has the sequence shown below.ACCTGAAGGAssuming there are no mutations in this portion of the DNA, what is the corresponding sequence on the complementary DNA strand?

(Multiple Choice)

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Question 163

Two spotted leopards produce a litter of four cubs. Three of the cubs are spotted and one is solid black. The black coat is probably what type of trait?

(Multiple Choice)

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Question 164

When gametes are produced from a parent cell during normal meiosis, which of the following describes the number of chromosomes in each resulting cell?

(Multiple Choice)

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Question 165

Human tears contain the enzyme lysozyme, which damages the cell walls of bacteria. Which of the following statements about lysozyme is most accurate?

(Multiple Choice)

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Question 166

Which of the following terms applies to traits, such as human eye color, that are controlled by more than one gene?

(Multiple Choice)

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Question 167

Which of the following functions does active transport perform in a cell?

(Multiple Choice)

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Question 168

Which of the following statements best explains why geographic isolation can lead to speciation?

(Multiple Choice)

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Question 169

On remote islands, immigration and emigration usually do not have a large effect on population sizes. A bird population on a remote island remains at a relatively constant size year after year. Which of the following most likely describes the birthrate and the death rate for this population?

(Multiple Choice)

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Question 170

The fossil record supports which of the following descriptions of the evolution of life on Earth?

(Multiple Choice)

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Question 171

If a cell's lysosomes were damaged, which of the following would most likely occur?

(Multiple Choice)

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Question 172

Showing 161 - 172 of 172

Which of the following explains why legume plants are less likely than other terrestrial plants to experience nitrogen limitation?

A portion of one strand of a DNA molecule has the sequence shown below.ACCTGAAGGAssuming there are no mutations in this portion of the DNA, what is the corresponding sequence on the complementary DNA strand?

Two spotted leopards produce a litter of four cubs. Three of the cubs are spotted and one is solid black. The black coat is probably what type of trait?

When gametes are produced from a parent cell during normal meiosis, which of the following describes the number of chromosomes in each resulting cell?

Human tears contain the enzyme lysozyme, which damages the cell walls of bacteria. Which of the following statements about lysozyme is most accurate?

Which of the following terms applies to traits, such as human eye color, that are controlled by more than one gene?

Which of the following functions does active transport perform in a cell?

Which of the following statements best explains why geographic isolation can lead to speciation?

On remote islands, immigration and emigration usually do not have a large effect on population sizes. A bird population on a remote island remains at a relatively constant size year after year. Which of the following most likely describes the birthrate and the death rate for this population?

The fossil record supports which of the following descriptions of the evolution of life on Earth?

If a cell's lysosomes were damaged, which of the following would most likely occur?

Chemistry

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