Which is NOT a part of the vertebrate eye?
A. cornea
B. retina
C. iris
D. cochlea
E. pupil
D. cochlea
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Biogeochemical cycles describe ____
a. the constant recycling of nutrients between biotic and abiotic components of ecosystems b. pathways by which energy and nutrients move through biotic components of ecosystems c. all available nutrients in an ecosystem
d. a series of mathematical equations that define an ecosystem’s most important relationships e. the input of solar energy into a closed ecosystem
The process of evaluating the quality of information before accepting it is called ________
a. critical thinking b. the scientific method c. deductive reasoning d. inductive reasoning e. making a prediction
Meiosis I in the oocyte is completed ____
a. just prior to ovulation b. just after ovulation c. after fertilization d. at cycle day 1 e. at cycle day 28
The synthesis of DNA or RNA from the organic soup would have been guided by the actions of enzymes in the
A. protein-first hypothesis. B. RNA-first hypothesis. C. clay-catalyst hypothesis. D. chloroplast.