Cleavage produces a(n) __________ stage embryo. Fill in the blank(s) with the appropriate word(s)
ANSWER: blastula
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Capillary action is one of the forces that aids water's upward movement in plants. The narrower the diameter of the tube, the farther the water column will rise. Capillary action is a result of water molecules:
A. producing sufficient surface tension to overcome the pull of gravity. B. having a strong cohesive force and attaching to the surrounding vessel walls. C. storing heat and thus moving faster because of heat of vaporization. D. having an adhesive force, which allows them to attach to the vessel walls. E. being associated with hydrophobic molecules, which can result in upward movement.
Recent evidence suggests that deep-sea waters (approximately 5000 meters below the surface) are rich in Thaumarchaeons
A. true B. false
Where do plants get the sugar to run and build their bodies?
What will be an ideal response?
A mature walled ascus of an ascomycete usually contains
A. an egg and a sperm. B. many multinucleate conidia. C. eight diploid nuclei. D. eight haploid nuclei. E. a zygote.