Careful, long-term studies conducted by Steve Hubbell and colleagues __________ for the proposal that spatial and temporal variation in gap formation caused by disturbance explains high diversity of tropical trees.
A) provide support
B) fail to provide support
Ans: B) fail to provide support
You might also like to view...
Which one of the following is NOT a component of the translation initiation complex?
A. Small ribosome subunit. B. Large ribosome subunit. C. mRNA. D. tRNA. E. All of these are components of the initiation complex.
A structure formed from the combination of cyanobacterial microbes and sediments is called:
a. a coral reef. b. a bacteria reef. c. a stromatolite. d. a stalactite. e. a stalagmite.
When conducting descriptive research, a scientist primarily uses ____
a. experiments b. experimental data c. control data d. observational data e. speculation
Which of the following best describes how the environment may play a role in the expression of our genes?
A. Some phenotypes, including skin color, can be influenced by the environment. The genotype still determines some aspect of skin color, but the interaction with the environment, in the form of sun exposure, can cause variations in the resulting phenotype. B. The environment is not able to alter genes or their physical expressions. Genotypes and phenotypes are both completely independent of environmental changes, unless in the form of mutations. C. The environment can alter an individual's appearance, but because these changes are temporary and unable to be inherited, they have no impact on the genotype or the expression of that genotype. D. All genes are directly influenced by the environment, even if only in minor ways, so the environment will always alter phenotype for all genes.