What glyptodont cross ensures that you will have all yellow offspring?
a. aa x aa
b. Aa x aa
c. AA x aa
d. Aa x aa
a
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Which of the following statements regarding extinction is (are) correct?
I) Only a small percentage of species is immune from extinction. II) Extinction occurs whether humans interfere or not. III) Extinctions can even be caused indirectly by humans. A) only I B) only II C) only III D) only II and III E) I, II, and III
You are studying a newly-established nature preserve, and find that the biomass of herbivores within it is 10 kJ/m2. Based on the graph below, what would you predict about the primary productivity of the area relative to other ecosystems?
A. It would be higher than tundra, but lower than savannah. B. It would be higher than savanna, but lower then tropical forest. C. It would be higher than savannah, but lower than temperate forest. D. It would be higher than desert, but lower than tundra.
Dogs have a diploid chromosome number of 78 . How many chromosomes do their gametes have?
a. 39 b. 78 c. 156 d. 234
Each structure labeled 4 in Figure 41-1 is:
a. a node of Ranvier.
b. a cell body.
c. a dendrite.
d. a synaptic terminal.
e. an axon.