Which of the following traits is characteristic of a K-selected species?
a. adapted to rapidly changing environments
b. small body size
c. short generation time
d. provide substantial parental care to offspring
e. single reproductive event common
D
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The sunflower species Helianthus anomalus is thought to have been formed by hybridization between the sunflower species H. petiolaris and H. annuus because it contains a set of chromsomes from both parental species. H. anomalus is most likely an example of instantaneous speciation through
A. allopolyploidy. B. autopolyploidy. C. parthenogenesis. D. hybrid sterility. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about speciation through polyploidy? 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?
In which assisted reproductive method is a fertile female volunteer inseminated with sperm from a man whose partner
is infertile and the embryo then transferred to the man’s partner? a. ART b. intracytoplasmic sperm injection c. zygote intrafallopian transfer d. artificial insemination with embryo transfer e. gamete intrafallopian transfer
What contribution did Charles Lyell make?
A) He found some bird specimens on the Galapagos Islands. B) He found some fossils of extinct species. C) He suggested that life evolves through physical changes within the life span of an organism. D) He provided the first evidence that the Earth is much older than was previously thought.
When NADPH _____ electrons and hydrogen ions in the carbon reactions, NADP+ is formed through _____.
A. accepts, reduction B. donates, oxidation C. accepts, oxidation D. donates, reduction