UNIPORT Biology 2018/2019 Past Questions

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

Viruses differ from all forms of life because they.......

A.have a thick cell wall
B.feed on waste products of other organisms
C.cause infectious diseases
D.require other living cells to multiply

The nitrogenous substance that is excreted by birds in order to conserve water is ........

A.ammonia
B.urea
C.uric acid
D.nitric acid

A characteristic that can possibly be shared by both living and non-living organisms is

A.locomotion
B.irritability
C.increase in biomass
D.increase in size

In plants, the structure that performs a similar function with the testis in mammals is the

A.stigma
B.filament
C.anther
D.receptacle

The sum total of the biotic factors that affect living things is referred to as

A.environment
B.lithosphere
C.hydrosphere
D.atmosphere

The type of storage organ found in ginger is called

A.bulb
B.cutting
C.tuber
D.rhizome

Which of these animals is radically symmetrical?

A.squid
B.snail
C.hydra
D.earthworm

Which of the structures below is found in reptiles and birds

A.Scales
B.Legs
C.Beaks
D.Claws
E.All of the above

Which of the following is a major factor in variation among organisms?

A.Inbreeding
B.Backcrossing
C.Test crossing
D.Sexual reproduction
E.Gene dominance

Autotrophs are also described as .............

A.Consumers
B.Decomposers
C.Carnivores
D.Producers
E.Herbivores