One Sample of Mixed Varieties of Seed Is Planted in Barren

question 150

Multiple Choice

One sample of mixed varieties of seed is planted in barren soil; another sample from the same seed package is planted in soil that is extremely fertile. When the plants are fully grown, there are differences in height, both within each group of plants and between the two groups. Which of the following is true?

• A) Both within- and between-group differences are genetic in origin.
• B) Both within- and between-group differences are due to environmental differences.
• C) Within-group differences are genetic in origin, while between-group differences are due to environmental differences.
• D) Within-group differences are due to environmental differences, while between-group differences are genetic in origin.

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Definitions:

Thyrotropin

A hormone produced by the pituitary gland that stimulates the thyroid gland to produce thyroid hormones.

Thyroid-Stimulating Hormone

A hormone produced by the pituitary gland that regulates the production of hormones by the thyroid gland.

Adrenocortical Hormones

Steroid hormones produced by the adrenal cortex, involved in various bodily functions such as stress response, immune response, and metabolism.

Corticoids

A class of steroid hormones produced in the adrenal cortex or made synthetically, used especially for their anti-inflammatory and immunosuppressive properties.