OAU Biology 2017/2018 Past Questions

Which of these statements about succession is incorrect?

Example of genetic diseases include any of the following except

In his theory of evolution, Darwin identified as the main cause of natural selection

One of these is not a unique feature of meiosis

One of these organisms is not an Autotroph

One of these features is not typical of most animals

The cnidarians use their nematocysts only for ........

In the diagram below, the part labeled (a) is

The picture below is an example of a

In which biome would you expect to have the shortest growing season?

The concept of tropic structure of a community emphasizes

One of these is an agency responsible for conserving natural resources in Nigeria

What happens to a tadpole after 45 days old?

If a human skin cell with 46 chromosomes divides by mitosis, how many chromosomes will each daughter cell have?

Effect of air pollutant does not include .......

The lack of special supportive structures in bryophytes restricts them to one of the following types of growth.

Physical observable characteristics of an organism is called .........

In the evolutionary trend, in which phylum do we begin to see a complete digestive tract?

Absorption is maximum in the small intestine because of .........

Which type of placentation does the diagram below represent?

In man, abnormality with chromosome 21 often lead to a genetic problem called ..........

The presence of extensive amounts of rough endoplasmic reticulum in a cell is an indication that the cell is involved in ........

The condition in the diagram below is

Which of the following is not present in RNA?