The process by which pollen is transferred to the ovule is called
a. transmigration.
b. fertilization.
c. pollination.
d. all of the above.
a
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A seed that lands in the forest soil is homozygous mutant for the LEAFY (LFY) gene, and as a result does not produce any functional LEAFY protein. What do you predict will happen during the development of this seed?
A. It will germinate and grow vegetatively, but will never produce flowers. B. It will fail to germinate. C. It will germinate and immediately produce flowers. D. It will germinate and grow vegetatively. It will only develop flowers if it is from a species regulated by the autonomous flowering pathway. 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 flowering and the LEAFY gene? What other information is related to the question? Choose Answer Given what you now know, what information 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?
In determining the evolutionary relationships of current species, one needs to ________
A) read along the tree tips: Species closer to each other are always more closely related B) read along the tree tips: Species shown at the tips are arranged in patterns reflecting which groups evolved from others C) read "back" to nodes connecting species to determine common ancestry D) None of the above is an accurate way to read phylogenetic trees.
The energy released during the chain of electron transport molecules is used to create a(n) ____ gradient across the
inner mitochondrial membrane for chemiosmosis. a. ADP b. ATP c. proton d. oxygen e. electron
Echinoderms are related to Chordates because the first opening to develop becomes the mouth. Indicate whether the statement is true or false