(a(i))[3]
Use the information in Fig. 4.2 and Fig. 4.3 to explain why the conditions where these fish live could be difficult for them.
(a(ii))[4]
Siamese fighting fish also possess an organ with features similar to those of a human lung. Explain the benefit of this organ to Siamese fighting fish.
(b(i))[1]
Siamese fighting fish have 42 chromosomes in each diploid cell. State the named structure inside each diploid cell that contains the chromosomes.
(b(ii))[1]
State the type of nuclear division that results in gametes.
(b(iii))[1]
State how many chromosomes there are in each gamete of the Siamese fighting fish.
(c)[5]
Suggest how selective breeding in Siamese fighting fish can be used to produce these desirable features.