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<span>There are three classes of antibodies- is FALSE statement regarding Antibodies. ***There are 5 classes of human antibodies: IgG, IgM, IgA, IgD, and IgE.
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5: true
6: Oxygen
7: H+
8: true
Answer:
the answer is the 1st one
Explanation:
Ans.
Testes and ovaries are male and female reproductive organs, respectively. These organs are similiar as testes produce male gametes or sperms by the process of spermatogenesis and ovaries produce female gametes or ova by the process of oogenesis.
These gametes fuse together to form zygote that develops into a multicellular organism. Thus, the correct answer is 'option A). both produce sex cells.'