Genes are the pair of controlling factors in alleles, and both have equal dominance
Indicate whether the statement is true or false
True
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One of the most significant roles of the exoskeleton is to provide protection from desiccation
Indicate whether the statement is true or false
Why do waves expend so much energy on a rocky headland?
A) Waves reflect off the headland and amplify the incoming waves. B) Wave velocity is greater on headlands than on beaches. C) Waves refract toward the headland on both sides. D) Headlands tend to have deeper water surrounding them, so the waves are higher.
A species has evolved an asexual mode of reproduction by having offspring develop from unfertilized eggs. Which of the following will be true of this species' response to natural selection?
A) The species will increase in numbers because genetic variation is increased. B) The species will compensate for loss of genetic variation by hybridizing with other species. C) There will be fewer deaths from natural selection because sexual recombination always leads to extinction. D) There will be less genetic variation from sexual recombination and a risk of not adapting quickly to environmental change. E) There will be more deaths from natural selection because there is no mutation.
Which of the following best matches the description?The 1980 law that addressed the issue of cleanup of hazardous waste sites.
A. ignitability B. RCRA C. Superfund D. acute toxicity E. National Priority List F. corrosiveness G. toxicity H. LD50 I. threshold levels J. synergism K. CERCLA L. hazardous wastes M. waste minimization N. chronic toxicity O. reactivity