Which of the following water pollutants may contain organisms that cause dysentery?
Pesticides
Sewage
Industrial wastes
Fertilizers
Crude oil
Correct answer is B
No explanation has been provided for this answer.
transpiration
digestion
excretion
respiration
decay
Correct answer is B
No explanation has been provided for this answer.
0o
30o
45o
60o
90o
Correct answer is B
Which of the following explains the term: pyramid of numbers?
The number of organisms in a trophic level
The relationship between plants in different trophic levels
The number of saprophytes and parasites in a habitat
The number of predators in a habitat
Progressive decrease in the number of individuals from lower to higher trophic level
Correct answer is E
No explanation has been provided for this answer.
The following are features of the Northern Guinea Savanna except
presence of tall trees with thick bark
bare soil with very few trees
presence of fire-resistant trees
abundant herbivores
predominance of woody trees
Correct answer is E
No explanation has been provided for this answer.