the body temperature in II varies with that in I
the body temperature in I is independent of external temperature
I and II maintain constant body temperature
external temperatures affect the body temperature of I and II
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1:2
1:2:1
1:1:1:1
3:1
TT, Tt , Tt ,tt
1 TT -- 2 Tt -- 1 tt
1:2:1
I
II
III
IV
Answer: D. IV
If T is dominant and the gene for tallness, then only individuals with the TT or Tt genotype will be tall. The only genotype that will result in shortness is tt, so the correct answer is IV.
I
II
III
IV
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wind
man
insects
birds
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stationary phase
lag phase
log phase
steady phase
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pulmonary artery
pulmonary vein
carotid artery
jugular vein
Explanation not provided, please join discuss, your contributions are welcomed
II and III
III and IV
I and IV
I and III
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100
200
300
400
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The population of species II is growing at a slow rate
The population of species III has reached its carrying capacity
The population of species I has become extinct
The population of species I is always higher than species II
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