Which of the Following Is True

question 31

Multiple Choice

Which of the following is true?

• A)Humans may have been causing extinctions thousands of years ago,but our impact has recently increased.
• B)Humans are responsible for many of the mass extinctions in the geologic record.
• C)Humans only began causing extinctions in the past 150 years.
• D)Humans have never had significant impact on species extinctions until the past four decades.
• E)Humans have been causing extinctions for thousands of years and we are still causing extinctions at about the same rate.

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Definitions:

Genetic Disorders

Diseases or conditions caused by abnormalities in an individual's DNA, which can be inherited or result from mutations.

Collagen Development

The process by which collagen, a key protein in connective tissues, is synthesized and organized, crucial for maintaining the structural integrity, elasticity, and strength of tissues.

Blood Calcium Levels

The concentration of calcium ions in the bloodstream, crucial for bone health, muscle contraction, and nerve function.

Calcitonin

A hormone produced by the thyroid gland that helps regulate calcium levels in the blood by decreasing the concentration of calcium.