Question

Describe environmental influence on sex-determination in Bonellia.

Answer 1

• Sex determination in Bonellia is completely environmental.

• External and internal environmental factors influence sex determination in Bonellia.

•Bonellia is a marine worm, male and female individuals are shown dimorphism.

• The female worm is a long leaf-like structure and ovaries are enlarged.

• The male worm is a very small creature.

•The adult female produces green pigment in its skin.

• The sex of the green spoonworm is determined by external environmental factors.

Answer 2

Chromosomes are known to determine the sex in the case of bonellia but in some cases the environmental factors are also responsible to influence the sex of the Bonellia

Explanation:

• These worms are dimorphic in nature that is they contain both the male and the female reproductive organs within themselves.
• The female worm is very long when compared to the male worm and the male is found in the oviduct of the female worm.
• When some changes occur in the environment they tend to develop into male and the female worms accordingly.

Learn more about oviduct:

What is the function of oviduct?

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Learn more about dimorphic:

What do you understand by the term Dimorphic chloroplast?

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