Select the reasons why adaptive radiations are often observed on remote volcanic islands. Check all that apply.
_____ When a new volcanic island forms, there are many empty niches.
_____ Only a few individuals reach remote islands.
_____ Remote islands have more plant diversity than the mainland does.
_____ Evolution is intrinsically faster on islands than on the mainland.
__X__ When a new volcanic island forms, there are many empty niches.
__X__ Only a few individuals reach remote islands.
_____ Remote islands have more plant diversity than the mainland does.
_____ Evolution is intrinsically faster on islands than on the mainland.
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Which of the following is closest to a micrometer in size?
A) the width of a strand of DNA B) the length of a plant cell C) the length of a chicken egg D) a typical prokaryotic cell E) the size of a ribosome
Which of the following is evidence for evolution?
A) Bacteria becoming resistant to antibiotics over time B) Mosquitoes becoming resistant to pesticides C) Cells with common features and chemically similar DNA D) All are evidence for evolution
The difference between a society and an aggregation is that aggregations are characterized by:
a. communication between all animals present. b. individuals present only for breeding. c. a lack of intentional interaction between those animals present. d. confinement; while in a society the individuals are free to enter and exit. e. genetically determined behavioral responses required to bring these individuals together.
All atoms tend to fill their outer energy levels with the maximum number of electrons, usually eight. Depending on whether atoms satisfy the octet rule will predict:
A. whether they will dissolve in water. B. the chemical behavior of the atoms. C. whether they will be found in nature. D. their radioactive energy.