2019 - JAMB Biology Past Questions and Answers - page 4

The reason is that rabbits do not have the adaptive features of an aquatic habitat like gills therefore, it cannot survive in an aquatic habitat.

Water passes through the root cell membrane of a plant in so that osmosis to take place.

The reason why the rate of transpiration is reduced in savannah forest is because of thick barks of the trees in savannah forest.

The theory of evolution by natural selection, first formulated in Darwin's book "On the Origin of Species" in 1859, is the process by which organisms change over time as a result of changes in heritable physical or behavioural traits.

Fats provide more energy to animals than carbohydrates do.  Fats, therefore, contains highest amount of energy in joules per unit weight.

Landsteiner and Lavine are scientists that discovered the Rhesus factor in human blood.

Autecology, also called Species Ecology, the study of the interactions of an individual organism or a single species with the living and nonliving factors of its environment.

Nitrobacter is a chemoautotrophic organism found in soil and water responsible for the oxidation of ammonium to nitrite and nitrite to nitrate. 

Nitrifying bacteria are chemolithotrophic organisms that include species of the genera Nitrosomonas, Nitrosococcus, Nitrobacter and Nitrococcus. These bacteria get their energy by the oxidation of inorganic nitrogen compounds. Types include ammonia-oxidizing bacteria and nitrite-oxidizing bacteria.

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Artificial pollination in plant breeding improves the variety of crops.