According to the figure, which species is considered a pioneer species?
A) Ulva spp.
B) Gigartina canaliculata
C) Gigartina coulteri
D) Gigartina leptorhynchos
A
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Why might the different species of whales fail to recover even though hunting has been banned?
A. loss of genetic diversity B. increased disease spread due to edge effects C. loss of habitat D. introduction of invasive species E. increasing predation
A ____ is a pioneer organism.
A. shrub B. lichen C. tree D. raccoon
Which of the following traits is part of the linkage group found on chromosome 19?
A) muscular dystrophy B) hair color (brown) C) colorectal cancer D) eye color (green/blue) E) All of the answer choices are part of a linkage group on chromosome 19.
Why are the strands of DNA said to be complementary to each other?
A) The sugar-phosphate chains are running in opposite directions. B) All the bases of one strand are paired up with their complementary bases on the other strand. C) The sugar-phosphate chains of each strand are identical. D) Both strands can have any of four possible bases attached.