Four of the five answers below possess vascular tissue. Select the exception
a. whisk ferns
b. mosses
c. pine trees
d. flowering plants
e. horsetails
b
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What does it mean when it is said that the tree of human evolution is shallow?
A. that only humans that have the same ethnicity will share a recent common ancestor B. that humans haven't evolved much C. that all humans, no matter how distantly related they are, share a recent common ancestor D. that only humans on the same continent will share a recent common ancestor E. None of the answer options is correct.
Allopatric speciation occurs because a population
A. merges with another population of the same species. B. becomes geographically isolated and undergoes genetic change. C. becomes extinct and is replaced by a population of a different species. D. shows little genetic change from generation to generation. E. experiences hybrid sterility.
What is a benefit of swarming behavior? a. Increases the likelihood of fertilization
b. Finding individuals to mate with long-term. c. Synchronization to lunar cycles. d. Bringing juvenile individuals together to create social bonds.
Given the following numbers, calculate the mean: 10, 12, 14, 16, 18
What will be an ideal response?