The number of individuals that die in a population per unit time is its rate.

A. expatriation
B. birth
C. immigration
D. death
E. emigration


D. death

Biology & Microbiology

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Which of the following is not true of glutaraldehyde?

A. It is classified as a carcinogen. B. It inactivates endospores in 3 hours. C. It inactivates viruses. D. It does not damage plastics. E. It cross-links proteins on cell surfaces.

Biology & Microbiology

Which molecule is not a carbohydrate?

a. Lipid b. Glycogen c. Starch d. Cellulose

Biology & Microbiology

Some antibiotics can harm the ribosomes in animal cells. Which of the following would you predict to be the most likely long-term effect of damage to ribosomes?

What will be an ideal response?

Biology & Microbiology

Jacobsen syndrome, which can cause heart defects, intellectual deficiencies, and bleeding disorders, is caused by a deletion of the terminal end of chromosome 11. What method could you use to determine whether an individual has Jacobsen syndrome?

A) Look at a person's skin cells in G1 under a light microscope. B) Perform a karyotype using a person's white blood cells. C) Place a person's red blood cells in culture to see if they grow. D) Count the number of chromosomes present.

Biology & Microbiology