Answers MI-Biology A-CRLab: Diffusion Across a Semi-permeable Membrane

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The graph shows the rate of malignant melanoma for the years 1973–2004.Based on the information in the graph, which conclusion can be drawn?

Fewer cases of melanoma were reported over time.

More women were out in the sun over time.

Women use sunscreen about twice as often as men use sunscreen.

The rate of malignant melanoma has increased in both men and women.

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At which point in the eukaryotic cell cycle does mitosis occur?

before the G1 phase

after the G2 phase

following the S phase

after the G0 phase

An error occurs when the DNA of a cell is copied. However, the cell does not divide after the error is detected. Which statement best describes the cell cycle for this cell?

An error during the G1 phase is corrected during the G2 phase.

An error during the S phase is corrected during the G2 phase.

An error during the G1 phase is corrected during the S phase.

An error during the S phase is corrected during mitosis.

What process is typical of cancer?

replacement of damaged cells

DNA replication

cellular death

uncontrolled cell division

The table shows the rate of melanoma by gender.Consider the number of males who were diagnosed with melanoma in 2005. What quantity does this number represent?

In 2005, 27.99 percent of males were diagnosed with melanoma.

In 2005, 27.99 males out of 100 were diagnosed with melanoma.

In 2005, 27.99 cases of melanoma were diagnosed in males.

In 2005, 27.99 males out of every 100,000 were diagnosed with melanoma.

Which can disrupt the cell cycle?

mutation

G0 phase

replication

cancer

The graph shows the rates of malignant melanoma for the years 1973–2004.Based on the information in the graph, what conclusions can be drawn about the rate of skin cancer in men compared to that in women?

Malignant melanoma decreased at a faster rate in men than in women.

Malignant melanoma decreased at a faster rate in women than in men.

Malignant melanoma increased at a faster rate in men than in women.

Malignant melanoma increased at a faster rate in women than in men.

Why is a skin graft necessary when cells are damaged by a third-degree burn?

to promote the repair of existing cells

to protect the area from infection

to prevent mutations

to replace damaged nerves

The diagram shows the stages of the eukaryotic cell cycle.Which stage is labeled C in the diagram?

M phase

G0 phase

S phase

G2 phase

Which is the main reason cells are replaced in the body?

The cells are too large.

The cells are inactive.

The cells are damaged.

The cells are cancerous.

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