Which of the following is true of leucocytes?
they are respiratory pigments
they are most numerous and ramify all cells
they are large and nucleated
they are involved in blood clotting
Correct answer is C
No explanation has been provided for this answer.
Which of the following can cause living cells to shrink?
Hypotonic solution
Isotonic solution
Deionized water
Hypertonic solution
Correct answer is D
No explanation has been provided for this answer.
The adaptive importance of nuptial flight from termite colonies is to
disperse the reproductives in order to establish new colonies
provide abundant food for birds and other animals during the early rains
ensure cross-breeding between members of one colony and another
expel the reproductives so as to provide enogh food for other members
Correct answer is A
No explanation has been provided for this answer.
In which of the following groups of vertebrates is parental care mostly exhibited ?
Reptilia
Amphibia
Aves
Mammalia
Correct answer is D
No explanation has been provided for this answer.
The function of the red head in male Agama lizards is to
conceal and camouflage the animal from predators
scare other males from the territory
attract female lizards for mating purposes
warn predators of the distastefulness of the animal
Correct answer is C
No explanation has been provided for this answer.