In the amniote egg diagram shown, the item labeled "1" is the
a. yolk sac.
b. chorion.
c. allantois.
d. amnion.
e. albumin.
D
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Alcohol is a waste product produced by yeast in the presence of sugar and the absence of ________.
A. ATP B. H2O C. CO2 D. O2
In the southeastern U.S., two species of wild lettuce (Lactuca) do not usually form hybrids, because they bloom at different seasons. The means of isolation appears to be
A. postzygotic and behavioral. B. prezygotic and temporal. C. prezygotic and geographical. D. prezygotic and mechanical. E. postzygotic and ecological. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about reproductive isolation? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The photic zone is part of what broader zone?
a. Epibenthic zone b. Vertical zone c. Aphotic zone d. Epipelagic zone
What type of experimental result (two words) is one that is very unlikely to be due to chance differences between the experimental and control groups?
What will be an ideal response?