Pond weeds normally lack thick layers of cuticle because
their system of photosynthesis is not efficient
there is no danger of becoming desiccated
their leaves are either dissected or bone-shaped
there are numerous stoma a on their upper epidermis
Correct answer is B
No explanation has been provided for this answer.
Which of the following statements about the transfer of energy in the ecosystem is correct?
energy increases at high trophic levels
More organisms can be supported at higher levels
There are fewer organisms at top tropic levels
Energy is lost at each trophic level
Correct answer is D
No explanation has been provided for this answer.
What would be the effect of taking the lion out of the web?
The number of organisms at each trophic level would increase
Man would occupy the apex of the web
There would be more rabbit in the web
The energy reaching the remaining trophic would be increase
Correct answer is B
No explanation has been provided for this answer.
Which of the following instruments is used to measure wind speed?
Thermometer
Barometer
Hygrometer
Anemometer
Correct answer is D
No explanation has been provided for this answer.
Which of the following physical actors is likely to affect the distribution of plants in a pond?
light
Humid
Wind
Temperature
Correct answer is A
No explanation has been provided for this answer.