Which of the labeled graphs above represents the age span of worker bees primarily occupied by
feeding the brood?
a. A
b. B
c. C
d. D
e. E
B
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Which of the following characteristics would not favor delayed reproduction in a given species?
1.Individuals grow larger with age. 2.Larger size does not increase fecundity. 3.Mature individuals are likely to survive to old age. 4.Number of offspring produced increases with age.
Which of the following statements is NOT correct regarding nonrenewable fuel resources?
A. Burning these nonrenewable fuels contributes to global warming. B. Burning these nonrenewable fuels contributes to acid rain. C. Extracting and transporting these fuels has negative ecological impacts. D. Oil harms species when it leaks from pipelines, ships, or wells. E. Nonrenewable energy sources do not produce greenhouse gases.
Synthesis of which of the following compounds in a mature leaf would be least impacted by a temporary soil nitrogen deficiency?
A) DNA B) RNA C) amino acids D) cellulose
Major classes of macromolecules present in all living microorganisms include
A) amino acids, carbohydrates, lipids, and nucleic acids. B) cell wall, cytoplasmic membrane, nucleoid, and ribosomes. C) genes, proteins, and vitamins. D) inorganic and organic compounds.