Recent questions in Biology

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1 answer

Describe how natural selection brings about the adaptations of a species to its environment.

asked Aug 19, 2021 in Biology Form 4 by anonymous

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3 answers

What is meant by the term natural selection?

asked Aug 19, 2021 in Biology Form 4 by anonymous

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1 answer

The relationship between oxygen concentration, potassium gain and sugar loss in isolated barley root was determined. The results obtained are given in the table below. (The sugar loss and potassium gain are expressed in arbitrary units).

asked Aug 19, 2021 in Biology Form 2 by anonymous

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1 answer

What is the role of teeth in digestion?

asked Aug 19, 2021 in Biology Form 1 by anonymous

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1 answer

Name one dental disease in humans.

asked Aug 19, 2021 in Biology Form 1 by anonymous

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5 answers

An animal had the following teeth; on the upper jaw, no incisors, no canines, six premolars and six molars. On the lower jaw, 6 incisors, no canines, six premolars and six molars.

asked Aug 19, 2021 in Biology Form 1 by anonymous

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1 answer

The scheme below shows how energy is transmitted from the sun into the ecosystem.

asked Aug 19, 2021 in Biology Form 3 by anonymous

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1 answer

The diagram below represents the urinogenital system of a human being.

asked Aug 19, 2021 in Biology Form 2 by anonymous

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1 answer

The following pedigree shows how the gene for colourblindness was passed in a family for three generations. The gene for colour blindness is sex linked.

asked Aug 19, 2021 in Biology Form 4 by anonymous

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1 answer

The following set up was set for the form two class to study a certain concept.

asked Aug 19, 2021 in Biology Form 2 by anonymous

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3 answers

What is parthenocarpy?

asked Aug 19, 2021 in Biology Form 3 by anonymous

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1 answer

State two roles of progesterone.

asked Aug 19, 2021 in Biology Form 3 by anonymous

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1 answer

Below is a diagram of a specialized cell:

asked Aug 19, 2021 in Biology Form 4 by anonymous

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1 answer

State one way by which HIV/AIDs is transmitted from mother to child.

asked Aug 19, 2021 in Biology Form 3 by anonymous

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1 answer

Apart from AIDs, name one diseases of the reproductive system in man that is caused by viruses.

asked Aug 19, 2021 in Biology Form 3 by anonymous

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1 answer

Calculate the diameter of the cells in micro-metre given that the diameter of the field of view is 3mm and that they are 10 cells across the field of view, the total magnification was 100x.

asked Aug 19, 2021 in Biology Form 1 by anonymous

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1 answer

A drop of a person’s blood shows clumping with the anti-B serum but not with anti-A serum. State the person blood group.

asked Aug 19, 2021 in Biology Form 2 by anonymous

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1 answer

Describe how white blood cells fight against infection.

asked Aug 19, 2021 in Biology Form 2 by anonymous

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1 answer

State two adaptations of fruits dispersed by wind.

asked Aug 19, 2021 in Biology Form 3 by anonymous

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1 answer

State two main characteristics of organisms in kingdom fungi.

asked Aug 19, 2021 in Biology Form 1 by anonymous

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