Which collection of species could form a pioneer community?
a. lichens and mosses
b. grasses, wildflowers, and small herbs
c. grasses and shrubs
d. trees such as aspens, alders, cedars, and firs
a
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What is consistent about the structure of all of the different types of neurons shown above (Fig. 35.5)?
A. Each type has a region, called the cell body, which contains the nucleus. B. Each type has a series of projections, called the dentrites, specialized for receiving information. C. Each type has a region, called the axon, specialized for transmitting information. D. All aspects of neuronal structure are completely consistent in the diagrams shown above. E. Each type has a region, called the cell body, which contains the nucleus; each type has a series of projections, called the dentrites, specialized for receiving information; each type has a region, called the axon, specialized for transmitting information, but not all aspects of neuronal structure are completely consistent in the diagrams shown above.
Suppose the amount of water that has evaporated from the ocean has increased per unit of time. What can be expected to happen at points B and E in the accompanying diagram?
What will be an ideal response?
The number of daughter chromosomes in a human cell (diploid number 46) in anaphase II of meiosis is
a. 2. b. 23. c. 46. d. 69. e. 92.
Consider the life of the praying mantis. The large, predatory female lays several hundred eggs in a foam mass in the fall. The young are most vulnerable when they emerge in the spring, but the few that survive spread out over the countryside and, if they find a mate, lay eggs the following fall. Which type of survivorship curve does this represent?
A. type I B. type II C. type III D. maximal exponential growth and minimal use of carrying capacity E. exponential growth followed by a decline from resource depletion