Which of the following human activities would help prevent endangered species from extinction?
Uncontrollably killing species
Regularly clearing forest vegetation
Temporarily maintaining species in zoological gardens
Regularly irrigating their natural habitats
Correct answer is C
No explanation has been provided for this answer.
The absence of an alimentary canal in the parasitic flatworm can be attributed to the fact that
its body does not feed
it has no enzymes
its body absorbs digested food
it has suckers on the scolex
Correct answer is C
No explanation has been provided for this answer.
The following organisms are plant pests except
birds
nematodes
bacteria
rodents
Correct answer is C
No explanation has been provided for this answer.
Ascaris lumbricoides is a parasitic
flat worm
round worm
arthropod
elastic worm
Correct answer is B
No explanation has been provided for this answer.
commensalism
epiphytism
mutualism
saprophytism
Correct answer is C
No explanation has been provided for this answer.