True or false: mutations always result in the death of the organism which acquires them
A. true B. false
Answer: B
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A ________________ is a protective protein coat that surrounds the nucleic acid of the virus.
A. Capsid B. DNA C. Pathogen D. Epidemic
One function of cortical parenchyma cells is:
a. photosynthesis. b. to provide structural support and strength. c. to produce cutin. d. to conduct water and nutrient minerals. e. to conduct sugars.
The HOBBIT gene in an embryo helps to control the development of what structure?
A. cotyledon B. endosperm C. root D. epicotyl E. root hair
A population ecologist wants to estimate the size of a robin population. In an apple orchard, she captures 10 robins,
marks them, and then releases them. She returns several weeks later and captures another 10 robins, of which 2 are robins she previously marked. The estimated population size of robins is ____.
a. 50 b. 15 c. 10 d. 200 e. 20