Extinction Flashcards

1
Q

Means that the last identified individual of species has been extinguished or no longer existing permanently.

A

Extinction

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2
Q

A catastrophic event has decimated life on Earth.

A

Mass extinction

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3
Q

Environmental factors that occurred in the past still exist today.

A

Modern Day extinction

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4
Q

The first mass extinction happened 440 million years ago

A

Ordovician extinction

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5
Q

During this period, land plants developed deep roots that release nutrients in the ocean that cause algal bloom in the ocean to flourish

A

Devonian extinction

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6
Q

The deadliest mass extinction that occurred 252 million years ago. 96% of life was lost in this extinction

A

Permian extinction

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7
Q

During this period 80% of life was lost including Dinosaurs ancestor

A

Triassic extinction

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8
Q

Is the variation of living forms within an ecosystem

A

Biodiversity

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9
Q

Because of an asteroid hit, 60% of life on Earth was lost including dinosaurs

A

Cretaceous extinction

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10
Q

Occurs when a natural habitat is no longer able to support its native species

A

Habitat loss

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11
Q

It is where a habitat fragmented or divided into smaller pieces

A

Habitat fragmentation

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12
Q

Is the new species introduced to or added in the environment either deliberately or accidentally by human activities

A

Introduced species

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13
Q

Taking up too many resources from the environment

A

Overexploitation

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14
Q

Is the introduction of harmful materials into the environment, and sometimes nutrients to other organisms

A

Pollution

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15
Q

A resource that can be used repeatedly and does not run out because it is naturally replaced

A

Renewable resources

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16
Q

A natural resource that cannot be readily replaced by natural means at a pace quick enough to keep up with consumption

A

Non-renewable resources

17
Q

The process by which plants use water, sunlight, and carbon dioxide to create oxygen and energy in the form of sugar

A

Photosynthesis

18
Q

An organelle within the cells of plants and certain algae that is the site of photosynthesis

A

Chloroplast

19
Q

A green pigment responsible for harvesting the sun energy

A

Chlorophyll

20
Q

Membrane-bound compartments inside chloroplasts. They are the site of light dependent reactions of photosynthesis

A

Thylakoid

21
Q

The fluid filling up the inner space of the chloroplasts which encircle the grana and the thylakoids

A

Stroma

22
Q

What are the two stages of Photosynthesis?

A

Light independent reaction/ Calvin Cycle and Light dependent

23
Q

Internal structure of the leaf where light dependent reaction happens

A

Thylakoid

24
Q

Internal structure where light independent reaction happens

A

Stroma

25
Q

A process in making ADP to ATP

A

Photophosphorylation

26
Q

The splitting of water into electron, hydrogen ion, and oxygen?

A

Photolysis

27
Q

The process by which the hydrogen ions enter the ATP synthase

A

Chemiosmosis

28
Q

Two main phases of Ordovician Extinction

A

Glaciation and Heating events

29
Q

What is utilize during light dependent reaction?

A

Water

30
Q

What is utilize during light independent reaction?

A

Carbon dioxide