The term autotroph refers to an organism that
A. must obtain organic compounds for its carbon needs.
B. gets energy by oxidizing chemical compounds.
C. does not need a carbon source.
D. gets energy from sunlight.
E. uses CO2 for its carbon source.
Answer: E
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Helical and icosahedral are terms used to describe the shape of a viral ________.
A. capsomere B. envelope C. spike D. core E. capsid
Each of the following is a model for membrane structure except
A) Overton lipid coat. B) Langmuir monolayer. C) Gorter and Grendel bilayer. D) Singer and Nicholson fluid mosaic. E) Watson and Crick double helix.
Additive alleles are those that are epistatic over nonallelic genes that influence the same phenotypic characteristic
Indicate whether the statement is true or false
Which of the following results would mean that a test-cross investigation was complete, given that a pigmented alligator (M_) is crossed with an albino alligator (mm)?
a) getting 3 offspring that are pigmented b) getting 6 offspring that are pigmented c) getting a single albino offspring d) Both a) and b) are true. e) None of the above is true.