Which is the most important adaptation of a bony fish life in water?
The possession of a streamlined shape
The presence of overlapping scales
the covering of the body by a thin film of slime
The possession of a caudal fin
Correct answer is A
No explanation has been provided for this answer.
Which of the following combinations differentiates a bony fish from a cartilaginous fish?
I, II, and III
I, III, and IV
II, III, and IV
II, III, and V
Correct answer is A
No explanation has been provided for this answer.
In Amoeba, osmoregulation is carried out by the
pseudopodium
food vacuole
contractile vacuole
nucleus
Correct answer is C
No explanation has been provided for this answer.
Which is the correct order in an evolutionary sequence for the following plants groups?
Bacteria → ferns → algae → mosses → seed plants
Bacteria → ferns → mosses → algae → seed plants
Bacteria → algae → mosses → ferns → seed plants
Bacteria → mosses → algae → ferns → seed plants
Correct answer is C
No explanation has been provided for this answer.
The soil swallowed by the earthworm to form the worm cast is grouped up in the
clitellum
protomium
mouth
gizzard
Correct answer is D
No explanation has been provided for this answer.