Which of the following is true?
A) Species on Earth today are but a fraction of all species that ever lived.
B) Most organisms present early in Earthʹs prehistory were more complex than modern organisms.
C) The number of species existing at one time has decreased throughout history.
D) Extinctions of past species have always happened gradually and on a small scale.
E) Bacteria represent a newer form of life, not present during the early prehistory of Earth.
Correct Answer:
Verified
Q11: Choose the item that best matches each
Q12: Choose the item that best matches each
Q13: Choose the item that best matches each
Q14: Extinction is _
A) proceeding more slowly now
Q15: Q17: Endemic species _ Q18: A population is a group of _ Q19: Most extinction is _
A) have high rates of
A)
A) problematic for generalists
B)
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