A. croaking of a male toad B. basking in lizard C. spines in porcupine fish D. huddling together of penguins…
A. thorax and abdomen B. visceral mass and abdomen C. thorax and foot D. visceral mass and foot Correct Answer:…
A. industrial chimneys, burning fossil oils and river dams B. sulphurdioxide, acid rain and pesticides C. sulphur dioxide, vehicle exhausts,…
I. Rattus rattus. Il. Agama agama III. Bufo regularis IV. Tilapia zillii A. I, II, III, IV B. I, IV,…
A. Na+ and Fe2+ B. Mg2+ and K+ C. Na+ and K+ D. Fe2+ and Mg2+ Correct Answer: Option C…
A. ATG B. TAG C. GAT D. AGT Correct Answer: Option D = AGT Explanation The complementary strand for…
A. the tank was too small compared to the large-ocean B. the body cells of the fish swelled and burst…
The number of plant species obtained from a population study of a garden is as follows: Guinea grass (15), Ipomoea…
I. High birth rate and high immigration rate II. Low birth rate and high immigration rate III. Low mortality rate…
A. chemicals --> olfactory nerve endings --> brain B. dissolved chemicals --> nasal sensory cells --> brain C. chemicals -->…