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megandunlap megandunlap
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6 years ago
Genetic comparisons indicate that hominids and apelike ancestors diverged approximately ________ years ago.
 
  a. 4 - 5 million
 b. 1.1 - 1.0 million
 c. 250,000 - 280,000
 d. 2.2 - 2.8 million
 e. 6 - 8 million

Question 2

According to the pressure flow theory, sugars move in phloem because of ________.
 
  a. negative pressure from removal of sugars at sinks
 b. active transport by living sieve-tube and companion cells
 c. all of the choices
 d. internal pressure building up in sieve tubes at a source
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grodriguezzgrodriguezz
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6 years ago
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megandunlap Author
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#2
6 years ago
Perfect on my quiz, so smart <3
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