Which of the following weather conditions would you expect to have the greatest negative impact on the sexual reproduction of mosses and ferns?
A) excessively wet and rainy conditions B) above-average temperatures for a few days
C) a long dry period D) cool, damp, and windy conditions
Answer: C
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Which of the following is not a function associated with the cytoskeleton?
A) scaffold for support and maintenance of cell shape B) anchoring site for mRNA during transcription C) cell division D) organizes the organelles within the cytoplasm E) signal transducer
The concept of gene flow indicates that evolution of populations can occur when individuals enter or leave a population. The addition of new alleles into the population makes it easy to visualize changes to phenotypes
Explain how emigration can lead to evolutionary change.
In any environment, both biotic and abiotic factors influence the population size of each type of organism. Which of the following is a biotic limiting factor for populations living in a desert ecosystem?
A) daytime temperatures B) water availability C) nitrogen content in soil D) available edible plant biomass
Choose the following interest group that should be held most responsible for the future roles of new scientific technologies.
A. educators B. scientists C. clergy D. politicians E. everyone