In pine trees the megaspores develop within a(n) ____
a. sporopollenin
b. ovule
c. seed
d. strobilus
e. pollen grain
B
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Explain why the amount of energy released in a redox reaction depends on the nature of both the electron donor and the electron acceptor
What will be an ideal response?
P700 is located in photosystem ____ and is comprised of chlorophyll ____ absorbing light with a
wavelength of 700 nm.
a. I; b b. I; a c. II; b d. II; a e. I and II; a
All plant tissues arise at ________, which are regions of rapidly dividing cells
a. cotyledons b. ground tissues c. collenchyma d. meristems
If the mitosomes of Giardia contain no DNA, yet are descendants of what were once free-living organisms, then where are we likely to find the genes that encode their structures, and what accounts for their current location there?
A) plasmids; conjugation B) plasmids; transformation C) nucleus; horizontal gene transfer D) nucleus; S phase