In the following list of developmental events, which occurs last?
a. tissue specialization
b. gamete formation
c. gastrulation
d. cleavage
e. organ formation
A
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In Cell 2,
Consider the following plant cells floating in an open beaker containing 0.2M sucrose. By definition, an open beaker has a pressure potential 0 MPa. Assume that the cells have come to equilibrium with the solution in the beaker.
A. ?p = 0.75 MPa and ?w = 0.0 MPa.
B. ?p = 0.0 MPa and ?w = -0.75 MPa.
C. ?p = -0.25 MPa and ?w = -0.5 MPa.
D. ?p = +0.25 MPa and ?w = -0.5 MPa.
E. ?p = +0.25 MPa and ?w = +0.25 MPa.
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
What key words does the question contain and what do they mean?
Gather Content
What do you already know about water potential? How does it relate to the question?
Consider Possibilities
What other information is related to the question? Which information is most useful?
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?
Which biome is characterized by plants whose
leaves turn color and drop off in the autumn? a. coniferous forest b. tundra c. temperate deciduous forest d. tropical rain forest e. all of these
The antidiuretic hormone
a. promotes processes that lead to an increase in the volume of urine. b. promotes processes that lead to a decrease in the volume of urine. c. acts on the proximal tubules of nephrons in the kidney. d. is produced by the adrenal cortex. e. is produced by the anterior pituitary gland.
What is RNA interference?
A. When an RNA virus blocks the DNA replication of the host cell. B. When tRNA attaches to the ribosome and blocks its movement along the mRNA. C. When small RNAs form double-stranded RNA molecules that can regulate gene expression. D. When proteins block the transcription of DNA in the nucleus.