1. 1989 Q6 P1
The diagram below represents a mammalian bone
(a) State the functions labelled K and L
(b) State the region of the body in which the bone is found
2. 1991 Q1 P1
State two ways in which skeletal muscle fibers are adapted to their functions
3. 1991 Q5 P1
The diagram below shows the arrangement of bones and muscles in a human arm
1. 1989 Q2 P1
State one structural and one functional difference between motor and sensory neurons.
2. 1990 Q15 P1
(a) How are the structures of the human eye adapted to their function?
1. 1989 Q13 P1
In an experiment, a variety of garden peas having a smooth seed coat was crossed with a variety with a wrinkled seed coat. All the seeds obtained in the f generation had a smooth seed coat. The f generation was selfed. The total number of f2 generation was 7324.
(a) Using appropriate letter symbols. Work out the genotype of the f1 generation
(b) From the information above, work out the following for the f2 generation
2. 1990 Q2 P1
The figure below is a structural diagram of a portion from anucleic acid stand.
1. 1989 Q7 P1
State the difference between Lamarckian and Darwinian theories of evolution.
2. 1991 Q17 P1
(a) What is meant by natural selection
(b) Describe the natural selection brings about adaptation of a species to its Environment
3. 1992 Q5 P1
Two populations of the same species of birds were separated over a long period of time by an ocean. Both populations initially fed on insects only. Later it was observed that one population fed entirely on fruits and seeds, although insects were available.
1. 1989 Q5 P1
The table below shows two mammalian hormones. For each hormone, state the site of production and its function in the body.
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