43
Which of the following can cause shrinkage of living cells?
- A. Hypotonic solution
- B. Isotonic solution
- C. Deionized water
- D. Hypertonic solution
44
An example of an endospermous seed is
- A. maize gain
- B. cashew nut
- C. cotton seed
- D. been seed
45
The adaptive importance of nuptial flight from termite colonies is to
- A. disperse the reproductives in order to establish new colonies
- B. provide abundant food for birds and other animals during the early rains
- C. ensure cross-breeding between members of one colony and another
- D. expel the reproductives so as to provide enogh food for other members
46
In which of the following groups of vertebrates is parental care mostly exhibited ?
- A. Reptilia
- B. Amphibia
- C. Aves
- D. Mammalia
47
Seed plants are divided into
- A. trachephytes and ferns
- B. angiosperms and gymonsperms
- C. monocotyledons and dicotyledons
- D. thallophytes and bryophytes
48
The function of the red head in male Agama lizards is to
- A. conceal and camouflage the animal from predators
- B. scare other males from the territory
- C. attract female lizards for mating purposes
- D. warm predators of the distastefulness of the animal