from the diagram above the optimal temperature for breeding cockroaches is
15ºC
19ºC
24ºC
33ºC
Correct answer is C
No explanation has been provided for this answer.
The easiest way to establish the level of pollution in a local stream is to measure the level of
oxygen
carbon (IV) oxide
ammonia
alkalinity
Correct answer is A
No explanation has been provided for this answer.
schistosomiasis
onchocerciasis
poliomyelitis
salmonellosis
Correct answer is A
No explanation has been provided for this answer.
pH
oxygen
light
temperature
Correct answer is C
No explanation has been provided for this answer.
The stomata of some plants are sunken and protected by hairs. These are features of
mesophytes
epiphytes
hydrophytes
xerophytes
Correct answer is D
No explanation has been provided for this answer.