3. Differentiate between the following: (a) Testes and ovaries. (b) Zygote and embryo. (c) Oviparous and viviparous animals.
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Explanation:
a) Ovaries are the female sex organs. They produce ovum cell also called the egg cell. The size of the ovaries differs from organism to organism. Testes are the male reproductive organs
b) A zygote is defined as the union of male gamete and female gamete during the fertilization process. On the other hand, an embryo is defined as the unborn offspring that is under development. 2. A zygote is the first stage of development.
c) Oviparous Organisms are those that lay Eggs which can be either Fertilised or unFertilised. Those Animals that directly give birth to alive young ones are referred to as Viviparous Animals
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