Biology

In a family of eight (8) all the children are girls Which of the following reasons correctly explains this?

A. The woman cannot produce male children B. The man has a low sperm count C. The Y component of…

6 years ago

In artificial selection, individuals without desirable traits may be prevented from mating by?

A. outbreeding B. sterilization C. inbreeding D. genetic engineering Correct Answer: Option B B. sterilization

6 years ago

An example of a saprophytic relationship is a / an?

A. vulture feeding on decaying meat B. mushroom growing on decaying vegetation C. boy eating stale bread D. earthworm feeding…

6 years ago

Which of the following statements about heredity is not true? In heredity the traits are?

A. carried by genes B. contained in the ovum and sperm C. always transmitted by one parent D. transmitted from…

6 years ago

A person with blood group, O can be given blood from persons who have blood belonging to?

A. group O only B. group A only C. groups A and O D. groups A, B and O Correct…

6 years ago

Fingerprints are useful in crime detection because?

A. the police have sophisticated fingerprint machines B. thieves may leave their prints at the scene of a crime C.…

6 years ago

The parameters of size, height, weight and colour in a population of living things are examples of?

A. environmental variation B. non-heritable variations C. continuous variations D. discontinuous variations Correct Answer: Option C C. continuous variations

6 years ago

Which of the following is an example of variation?

A. Blood B. Tongue rolling C. Reproduction D. Growth Correct Answer: Option B B. Tongue rolling

6 years ago

The main reason for the conservation of wildlife is to?

A. create national parks for recreation B. maintain ecological balance in communities C. prevent hunters from being 'cruel to animals…

6 years ago