Polygenic traits are

A) determined by a single gene.

B) determined by more than one gene.

C) phenotypically different in different organisms.

D) associated with many symptoms.


B) determined by more than one gene.

Biology & Microbiology

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The movement of a substance in solution from an area of higher concentration to an area of lower concentration across a selectively permeable membrane in a living organism is called:

What will be an ideal response?

Biology & Microbiology

A fetus’s exposure to ____ is the leading preventable cause of birth defects

a. alcohol b. X-rays c. viruses d. thalidomide e. Toxoplasma gondii

Biology & Microbiology

Autotrophs must acquire carbon from organic molecules produced from other organisms.

a. true b. false

Biology & Microbiology

Insulin lowers blood sugar. If insulin levels are high shortly after a meal, we can conclude that insulin secretion is regulated by ________ feedback mechanisms

Fill in the blank(s) with correct word

Biology & Microbiology