the number of producers are large
many animals feed directly on producers
they include primary, secondary and tertiary consumers
some animals form part of several food chains
Correct answer is A
No explanation has been provided for this answer.
The direction wind is determined by
an anemometer
a Secchi disc
a wind vane
a barometer
Correct answer is C
No explanation has been provided for this answer.
In ecology, a community refers to
a number of individuals of a given species
groups of different organisms living in a habitat
existing species in an abandoned farmland
the dominant species in a habitat
Correct answer is B
No explanation has been provided for this answer.
Which of the following structures is not an organ of the disgestive system?
Oesophagus
Pancreas
Stomach
Kidney
Correct answer is D
No explanation has been provided for this answer.
The function of the villi in the alimentary canal is to
secrete gastric juice
Curdle milk
emulsify fat
increase the surface area for absorption
Correct answer is D
No explanation has been provided for this answer.