The structure that prevents food particles from escaping through the fish gills are called gill
arches
filaments
rakers
lamellae
Correct answer is C
No explanation has been provided for this answer.
The caste of termites that lacks pigmentation is the
King
worker
soldier
queen
Correct answer is B
No explanation has been provided for this answer.
The ability of the cockroach to live in cracks and crevices is enhanced by the possession of
wings and segmented body
compound eyes
claws on the leg
dorso-ventrally flattened body
Correct answer is D
No explanation has been provided for this answer.
In snails, the hard calcareous shells are secreted by the
radula
ctenidium
pneumostome
mantle
Correct answer is D
No explanation has been provided for this answer.
The natural tendency of organisms as they evolve is to
decrease in size
increase in number
develop specialized structures
feed indiscriminately
Correct answer is C
No explanation has been provided for this answer.