In a population in which 1% of people exhibit sickle cell anemia, what percentage of the population are carriers for the disease but do not exhibit the disease?
a) 1%
b) 18%
c) 81%
d) 99%
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A population of roundworms lives in the lymph vessels of a human where it gets nourishment. When a mosquito bites an infected person, roundworms are taken up and then passed to other humans. The relationship between the human and the roundworm is
a) predation
b) parasitism
c) mutualism
d) competition
__________________________________________________________
Which of the following will an animal that uses camouflage as a method of avoiding predation probably demonstrate?
a) toxic chemicals
b) alarm responses
c) startle behaviour
d) motionless behaviour
__________________________________________________________
Help is extremely appreciated!!
a) 1%
b) 18%
c) 81%
d) 99%
__________________________________________________________
A population of roundworms lives in the lymph vessels of a human where it gets nourishment. When a mosquito bites an infected person, roundworms are taken up and then passed to other humans. The relationship between the human and the roundworm is
a) predation
b) parasitism
c) mutualism
d) competition
__________________________________________________________
Which of the following will an animal that uses camouflage as a method of avoiding predation probably demonstrate?
a) toxic chemicals
b) alarm responses
c) startle behaviour
d) motionless behaviour
__________________________________________________________
Help is extremely appreciated!!