Biology WAEC

In the pyramid of energy illustrated above; the organism with the least amount of transferred energy is?

A. Spirogyra B. Tadpole C. Fish D. Bird Correct Answer: Option D - Bird

3 years ago

Organisms in an ecosystem are usually grouped according to their trophic level into?

A. carnivores and omnívores, B. consumers and parasites C. producers, and saprophytes D. Producers and consumers Correct Answer: Option D…

3 years ago

Which of the following soil fertility improvement methods will have the most negative effect on the ecosystem if not controlled?

A. Application of N-P-K fertilizer B. Shifting cultivation C. Mixed farming D. Crop rotation Correct Answer: Option A - Application…

3 years ago

The specific role of a species within its environment is known as?

A. habitat B. niche C. trophic level D. biotic community Correct Answer: Option B - niche

3 years ago

The complex relationship between the members of a community and their physical environment is known as?

A. commensalism B. symbiosis C. saprophytism D. ecology Correct Answer: Option D - ecology

3 years ago

If 90 ants are found in a field with a total area of 100 m. What is the population density of the ants?

A. 0.09 B. 0.90 C. 9.00 D. 90.00 Correct Answer: Option B = 0.90

3 years ago

The salinity of a brackish habitat?

A. increases immediately after rainfall B. increases at the end of the rain C. decreases with an increase in the…

3 years ago

The conversion of ammonium salts into nitrates is called?

A. putrefaction B. denitrification C. fixation D. nitrification Correct Answer: Option D - nitrification

3 years ago

Tooth decay is usually caused by?

A. undigested and absorbed food B. eating a limited amount of sweetened food. C. the bacteria ín the mouth that…

3 years ago

The digestion of proteins starts in the?

A. small intestine B. stomach C. large intestine D. mouth Correct Answer: Option B - stomach

3 years ago