Write true or false for the following statements:

In snails, individuals can change sex, indicating that sex is not genetically determined in them.

Some dinosaurs had feathers although they could not fly but birds have feathers that help them to fly. In the context of evolution, this means that:

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In humans, there are two pairs of sex chromosomes.

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A child who inherits an X-chromosome form father will be a boy.

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A child who inherits a Y-chromosome from father will be a girl.