2018 - WAEC Biology Past Questions and Answers - page 3

The food production process (photosynthesis) makes use of the energy of light for the process. 

The food produced by plants serve as food both for the plants and animals (herbivores and in extension, all animals.)

Carbohydrates are broken down into their component sugars by hydrolysis. This type of hydrolysis is called Saccharification.

Transpiration pull or the suction force is the force which aids in drawing the water upward from roots to leaves which is used by the leaves for photosynthesis and excess is released through the stomata.

These three (starch, protein and lipids) have a process to undergo in the duodenum (the beginning of the small intestine), therefore, the surgery will affect them.

The normal dental formula of rabbits is I2/1 C0/0 P3/2 M3/3 for 28 teeth.

The setup is to show the capillarity (water rise) of each of the soil types

Capillarity in soil refers to the ability of a soil to allow and retain water in it. Clayey soil has the highest tendency to hold water hence, the water would rise highest in it.

The competition in a territory is the factor that basically determines whether or not a specie will survive or not in that territory. Ecological niche is the total package of the habits of a specie. The competition for food and water is the most important influencer of the ecological niche.

Proper light in the aquarium serves as a form of energy for the photosynthetic plants and animals, hence is very important.