Messenger RNA molecules contain information that is used to synthesize ___________.
A. nucleotides
B. amino acids
C. polypeptides
D. fatty acids
C. polypeptides
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Which of the following is related to type I survivorship?
a. large parental investment in the offspring b. high death rate with young individuals and low death rate with older individuals c. r-selection d. constant death rates through different age intervals
Which of the following is found in an open
circulatory system but NOT a closed circulatory system?
a. cavities in body tissues b. capillaries c. a heart or hearts d. a single vascular circuit e. more than one of these is found in an open circulatory system but NOT in a closed circulatory system
Select the compound that contains the most energy:a
AMP b. ADP c. ATP d. Pi e. AMP, ADP, ATP and Pi all contain equal amounts of energy.
In 2012, scientists studied modern Marchantia liverwort plants and observed that they not only are able to make their own food using energy from sunlight but they also absorb carbon from plant material in aquatic environments. They classified this plant
as a A) chemoheterotroph. B) photoautotroph. C) mixotroph. D) chemoautotroph.