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skelet666 [1.2K]
3 years ago
15

Humans reproduce through a form of cellular reproduction known as ____________ , which involves an egg and a sperm and introduce

s ____________ to the offspring
Biology
1 answer:
Marianna [84]3 years ago
8 0

Answer:

1. Sexual Reproduction

2. Genetic variations

Explanation:

Human reproduces through sexual reproduction. Sexual reproduction is the process of production of new progeny by the formation of male and female gametes (sperms and egg respectively) and fusion of gametes. During gamete formation, crossing over adds new gene combinations to the gametes. The genetic variations make the progeny of sexual reproduction different from each other and from the parents.

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He will use a radioactive element with a long half life of greater than 1 billion years

Explanation:

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According to Oxford Dictionary, radiometric dating is "a method of dating geological specimens by determining the relative proportions of particular radioactive isotopes present in a sample."

The age of rocks can only be ascertained using isotopes that have very long half lives because many of these rocks are very old (aged billions of years) hence their age can only be determined using elements that has a half life greater than 1 billion years.

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Answer:

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