According to this phylogenetic tree, which bear is most closely related to the American black bear?
A) The sun bear
B) The Asiatic black bear
C) The polar bear
D) The brown bear
B
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Alcohol is not a nutrient but provides __________ calories per gram.
Fill in the blank(s) with the appropriate word(s).
In the mid-twentieth century, researchers discovered that genes are made of ____________________ and that this molecule is part of cellular structures known as ____________________
Fill in the blank(s) with correct word
Which of the following statements about poliovirus and SARS virus is TRUE?
a. Both have a VPg protein that facilitates replication. b. Both form polyproteins that undergo post-translational cleavage. c. Both have 30-kilobase genomes. d. Both have single-stranded plus-sense RNA genomes.
Take a group of closely related species that vary in the average number of males a sin-gle female will mate with
What pattern would you expect, given the results of studies from the literature, if you measured sperm competition in each of the species? a. Sperm competition will show a positive relationship to the number of males per female. b. Sperm competition will show a negative relationship to the number of males per female. c. Sperm competition will show no relationship to the number of males per female. d. Cannot make a prediction with the information given.