Living Environment Reproduction and Development Regents Review

Front

What is reproduction in living organisms?

Back

Reproduction is the biological process by which new individual organisms are produced from their parents. It can be sexual or asexual.

Front

Define sexual reproduction.

Back

Sexual reproduction involves the combination of genetic material from two parents, resulting in offspring with genetic variation.

Front

What is asexual reproduction?

Back

Asexual reproduction is a mode of reproduction where offspring are produced from a single parent without the involvement of gametes, resulting in genetically identical offspring.

Front

What are gametes?

Back

Gametes are reproductive cells (sperm in males and eggs in females) that unite during sexual reproduction to form a zygote.

Front

Explain the term 'embryonic development'.

Back

Embryonic development refers to the process by which a fertilized egg (zygote) develops into a mature organism, involving cell division, differentiation, and organ formation.

Front

What is the significance of the first two months of embryonic development?

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The first two months are critical because major organs and systems are forming, making the embryo particularly sensitive to environmental factors.

Front

Define cloning in the context of reproduction.

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Cloning is a laboratory technique used to create a genetically identical copy of an organism or cell.

Front

What are the effects of environmental factors on embryonic development?

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Environmental factors, such as toxins or infections, can disrupt normal development, especially during critical periods like the first two months.

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What is the role of estrogen in reproduction?

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Estrogen is a hormone that regulates the development of female characteristics and reproductive functions.

Front

Explain the concept of selective breeding.

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Selective breeding is the process of choosing specific organisms with desirable traits to reproduce, enhancing those traits in future generations.