Which of the following is FALSE regarding populations of living organisms?
A. Parents often produce many offspring.
B. Population size is limited by the food supply.
C. Individuals in populations actively compete for scarce resources.
D. Individuals in populations show little or no variation.
Answer: D. Individuals in populations show little or no variation.
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The term ____________________ refers to the relaxation phase of the cardiac cycle. Fill in the blank(s) with the appropriate word(s)
Stan, a champion athlete, sleeps up in the mountains at 10,000 feet every night to increase his red blood cell count for better athletic performance. Which hormone increases to make that possible?
A) hemoglobin B) erythropoietin C) Rh factor D) fibrin
Alcohol is detoxified in organelles called ________
Fill in the blank(s) with correct word
What is the type of weak bond between the hydrogen of one molecule and the nitrogen of another molecule, where the two don't actively share an electron?
A) ionic bond B) covalent bond C) hydrogen bond D) disulfide bond E) hydrophobic bond