Biology

The activity of an organism which affects the survival of another organism in the same habitat constitutes?

A. an edaphic factor B. an abiotic factor C. a biotic factor D. a physiographic factor Correct Answer: Option C…

5 years ago

Low annual rainfall, sparse vegetation, high diurnal temperatures and cold nights are characteristic features of the?

A. tropical rainforest B. desert C. montane forest D. guinea savanna Correct Answer: Option B - desert

5 years ago

Which of the above are ways in which desert animals adapt to extreme heat of the environment?

I. Adoption of appropriate nocturnal habits ll. Burrowing lll. Adjusting their internal body temperature. IV Possession of many sweat pores.…

5 years ago

The two halves of the pelvic girdle are joined together at the?

A. pubic symphysis B. ilium C. pubis D. obturator foramen Correct Answer: Option A - pubic symphysis

5 years ago

Which of the following organisms is mainly found in the marine habitat?

A. Achatina B. Tilapia C. Dog fish D. Tortoise Correct Answer: Option C - Dog fish

5 years ago

The blood component that has the greatest affinity for oxygen is the?

A. lymphocytes B. leucocytes C. erythrocytes D. thrombocytes Correct Answer: Option C - erythrocytes

5 years ago

The barrier between maternal and foetal blood is the?

A. placenta B. liver C. umbilical chord D. uterine wall Correct Answer: Option A - placenta

5 years ago

Mycorrhizae promote plant growth by?

A. absorbing inorganic ions from the soil B. protecting it from infection C. helping it to utilize atmospheric nitrogen D.…

5 years ago

A food chain always begins with a?

A. consumer B. decomposer C. producer D. primary consumer Correct Answer: Option C - producer

5 years ago

Which of the above structures is correctly matched with the organisms in which it is found?

I. Stomata → Spirogyro II. Alveoli → Earthworm III. Malpighian tubule → Mammal IV. Contractile vacuole → Protozoa. A. lll…

5 years ago