Why do the Galápagos Islands and the Hawaiian Islands have so many endemic species of flies and birds? Check all that apply.
_____ There are numerous islands in each archipelago.
_____ There is adequate distance between islands to allow divergence.
_____ The founder effect was common when islands were colonized.
_____ Each bird or fly species has many common ancestors.
__X__ There are numerous islands in each archipelago.
__X__ There is adequate distance between islands to allow divergence.
__X__ The founder effect was common when islands were colonized.
_____ Each bird or fly species has many common ancestors.
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The ____________-type asteroids are generally found in the outer portion of the asteroid belt and are very dark
Fill in the blank(s) with correct word
The neurotransmitter receptor research of Jean-Luc Eiselé and his coworkers shows that
a. neurotransmitters are dependent on the activity of Na+. b. neurotransmitters are dependent on the activity of K+. c. neurotransmitters are dependent on the activity of Cl?. d. a receptor binding to neurotransmitters functions independently from conducting ions. e. neurotransmitters are dependent on the activity of Ca+.
Which of the following is true of
deuterostomes? a. The first opening into the embryo becomes the anus. b. The first opening into the embryo becomes the mouth. c. The second opening into the embryo becomes the anus. d. The second opening into the embryo becomes the mouth. e. The first opening into the embryo becomes the anus and the second opening into the embryo becomes the mouth
The U.S. has stayed ahead of the issues surrounding genetic technology by implementing ground-breaking public
policy and laws. a. True b. False