sceince final Flashcards

1
Q

what is speciation and an example?

A

he formation of new and distinct species in the course of evolution. bird beak

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2
Q

Where is there the most diversity in the world

A

Tropical forest

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3
Q

How does variation come to be?

A

Sexual reproduction results in genetic variation, or genetic differences, between parents and offspring

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4
Q

How does diversity produce health in an ecosystem?

A

oxygen production, soil genesis, and water detoxification to plant and animal communities, as well as to human society

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5
Q

Variation between species versus within a species

A

variation within species is genetic variation within that species and variation between species are genetic variations among all species.

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6
Q

what is mitosis

A

a process of cell duplication, in which one cell divides into two genetically identical daughter cells. it is asexual

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7
Q

What is Meiosis

A

a type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes . it is sexual

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8
Q

what is a zygote

A

fertilized egg cell when both gamete meet

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9
Q
A
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