Describe the differences between the algae and the cyanobacteria
What will be an ideal response?
Answer: Algae are photoautotrophic eukaryotes, whereas cyanobacteria are bacteria. The principle difference is algae use nuclei to store their genetic material, while cyanobacteria lack nuclei.
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Within the CNS, groups of neuronal cell bodies that are clustered together to perform basic functions are termed
A. nerve nets. B. ganglia. C. nuclei. D. spinal cords. E. soma.
Imprinting is a form of ____
a. innate response b. static pattern c. instinctive behavior d. unlearned behavior e. passive behavior
What is meant by adaptation from standing genetic variation in natural populations?
A) A population adapts to an environmental change by the occurrence of a beneficial mutation in an individual that introduces genetic variation, which rises to high frequency in the population because it is favored by natural selection following the environmental change. B) A population adapts to an environmental change by the rise to high frequency of an existing genetic variant that was already present in the population at low frequency before the environmental change. C) Individuals with more variation present in their genomes are favored by natural selection following an environmental change, and the population adapts via an overall increase in genetic variation in the population because the most genetically variable individuals have highest fitness. D) Genetic variation becomes costly for individuals following an environmental change, and the result is that overall genetic variation in a population decreases as the population adapts to the environmental change.
Women with breast cancers that are estrogen-sensitive ____
a. become ill when taking prescription estrogen b. can exacerbate their symptoms with only a small increase in estrogen levels c. are in danger of faster growth of cancer cells in the presence of estrogen d. will often experience cancer remission with increased uptake of estrogen e. do not produce their own estrogen and must obtain it through diet or supplements