UNICAL Biology 2021/2022 Past Questions

Practice each question, then open it to see the full details.

Unicellular organisms transport essential nutrients directly to all parts of their bodies by the process of diffusion because they have

A.a large surface area ratio
B.a large surface area to volume ratio
C.their bodies immersed in the nutrients
D.their outer membrane made of cellulose

The heart of the adult frog consists of

A.two auricles and two ventricles
B.one auricle and one ventricle
C.two ventricles and one auricle
D.one ventricle and two auricles

In adult mammalian blood, the cells, which lack nuclei are the

A.erythrocytes
B.lymphocytes
C.leucocytes
D.phagocytes

Which of the following movements occur during exhalation?

A.the diaphragm and intercostats muscles relax
B.the thoracic cavity and the intercostal muscles relax
C.the diaphragm and intercostal muscles contract
D.the diaphragm contract and the intercostats muscles relax

In which of the following groups of animals is the Malphigian tubule found?

A.lizards, snakes, and frogs
B.crickets, houseflies and grasshoppers
C.millipedes, centipedes and scorions
D.earthworms, roundworms and flatworms

Which of the following organisms is not classified as an animal?

A.Amoeba
B.Paramecium
C.Euglena
D.Obelia

In which of the following Nigerian states can mountain vegetation be found?

A.Taraba
B.Enugu
C.Bauchi
D.Plateau

The photosynthetic pigments include

A.chlorophyll and carotenoids
B.chloroplasts and cytochromes
C.melanin and haemoglobin
D.carotenoids and

The highest level of ecological organization is the

A.ecosystem
B.population
C.biosphere
D.niche

Which of the following has the most primitive. respiratory system?

A.Snail
B.Fish
C.Insect
D.Mouse