Predators are beneficial in pest control because they
are natural enemies of small mammals
devour farm animals
feed on crop pests
prey on game animals
compete for food with the pests
Correct answer is C
No explanation has been provided for this answer.
Succession is best described as
a process whereby organisms systematically colonize a barren habitat until a stable community is formed
a process whereby plants occupy a barren habitat until a suitable habitat is formed
a process whereby animals occupy a barren habitat until a suitable habitat is formed
the subsequent taking over of the land through emigration or seeds dispersal
the replacement of weaker plants and animals by stronger ones
Correct answer is A
No explanation has been provided for this answer.
Which of the following may not contribute to environmental pollution?
Solar energy radiation
Industrial waste
Waste disposal
Smoke
Nuclear power plant
Correct answer is A
No explanation has been provided for this answer.
explains the theory of acquired characteristics
supports Jean Lamarck's theory of use and disuse
supports the idea of survival of the fittest
have been refuted by fossil records
implies that organisms modify their environment to survive
Correct answer is C
No explanation has been provided for this answer.
The role of dead organic matter in the soil is to
make the soil black
increase the mineral salt content
provide food for all living organisms
increase the acidity of the soil
make the soil more porous
Correct answer is B
No explanation has been provided for this answer.