In his book Principles of Geology, Lyell argued that:

What will be an ideal response?


Ans: the Earth is ancient, sculpted by gradual geologic processes that continue today.

Biology & Microbiology

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Chloroplasts utilize light energy to make ____

a. carbohydrates b. fats c. proteins d. nucleic acids e. steroids

Biology & Microbiology

Keratins are structural proteins in skin, hair, and fingernails. One gene, called KRT10, is located on the 17th paired chromosome in humans. It produces a keratin that strengthens skin cells. Researchers have identified several mutations that can lead to rough, damaged, blistering skin because the keratins are not as strong as normal. Each mutation changes a specific amino acid at a particular location in the protein, and so is an example of a(n) mutation.

A. missense B. duplication C. insertion D. nonsense E. frameshift

Biology & Microbiology

Signs and symptoms of significant cyanide exposure include:

A) tachypnea. B) bradycardia. C) hypertension. D) hot, dry skin.

Biology & Microbiology

Which of the following terms accurately describes the replication of DNA in vivo?

A) dispersive B) semidiscontinuous C) conservative D) nonlinear E) nonreciprocal

Biology & Microbiology