Which level of membrane permeability allows the cell to reach equilibrium with its environment the fastest?
a. 0.05
b. 0.10
c. 0.20
d. None of the above. Membrane permeability does not influence the time it takes toreach equilibrium.
c
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The table shows the distribution of traits (A-E) in six extant species (1-6). A "0" indicates the ancestral condition, and a "1" indicates the derived condition. Which pair of species shares the greatest number of derived characters (synapomorphies)?
A. 1 and 4
B. 6 and 3
C. 6 and 1
D. 5 and 6
E. 5 and 1
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 cladistics?
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?
In this freshwater aquatic ecosystem, species
composition varies along its length based on rock types, depth, oxygen concentrations, and temperature.
a. streams b. lakes c. estuaries d. coral reefs e. hydrothermal vents
The stomach____
a. is a non-elastic sac b. secretes enzymes that begin to break down fats c. secretes enzymes that begin to break down proteins d. is surrounded by three layers of skeletal muscle
e. secretes enzymes that begin mechanical digestionIn some plants, the direction of growth changes in response to contact with an object. This is called __________.
Fill in the blank(s) with the appropriate word(s).