In flowering plants, the sperm does not have to swim to the egg. The sperm reaches the eggs by
A) wind pollination.
B) a pollen tube.
C) cell division within the spore case.
D) burrowing through the embryo sac wall.
E) digestion of the seed coat.
B
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Which of the following is a polysaccharide?
A. Fructose B. Cellulose C. Sucrose D. Glucose
A phosphorus shortage in soil would make it difficult for plants to produce:
A. DNA B. starch C. amylose D. cellulose 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 know about molecules that contain phosphorus? 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?
Measuring its costs and benefits in terms of energy spent and/or gained, predation :
A. is a lose-lose interaction. B. results in gain for both individuals. C. results in a gain for one individual and a loss for the other. D. results in a gain for one individual and neither a gain nor a loss for the other. E. none of these.
When considering nomenclature for scientific names, what is the difference between the two primates, Homo sapiens and Homo erectus?
A. One is a primate but the other is not. B. They are animals of a different kingdom. C. They are animals of a different order. D. They are animals of a different species. E. They are animals of a different genus.