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.
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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?
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
Autotrophs must acquire carbon from organic molecules produced from other organisms.
a. true b. false
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