Definitions Flashcards

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0
Q

Where do all living things get energy from?

A

The sun

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1
Q

Interdependence

A

When organisms rely on other living & nonliving things to survive.

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2
Q

What do arrows mean?

A

Energy transfer

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3
Q

Primary consumer & example

A

Rabbit , primary consumer eats only producers & is a heterotroph or herbivore

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4
Q

Secondary consumer & example

A

Bear, it eats the primary. It’s a carnivore/ heterotroph

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5
Q

Tertiary consumer & example

A

Tiger, it’s a carnivore/heterotroph

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6
Q

What does a food web tell us about life?

A

Organisms depend on each other to survive

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7
Q

Chemosynthesis & who uses this?

A

Use of chemicals to create their energy. Detrivores & decomposes

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8
Q

Homeostasis

A

Maintenance of a stable level of internal conditions even though the environment is constantly changing
Ex. Temp change body temp stays at 98.6 by sweating

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9
Q

Stimuli

A

Physical/chemical change in the internal/external environment
Ex. Owl dilates pupil to keep light consistent

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10
Q

Metabolism

A

Sum of all the chemical reactions that take in and transform energy and material from the environment
Ex. Photosynthesis sun➡️plant human eats food for energy

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11
Q

Biogeochrmical cycles

A

Nitrogen carbon phosphorus and water

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12
Q

What is a name for an antibiotic that is a control

A

Placebo

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13
Q

Carrying capacity has what? & is represented by what graph?

A

Logistic and has units of ex. Per 100 squared meters

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14
Q

Generalist / specialist

A

Generalist- range of conditions and resources (cockroach)

Specialist- narrow range (hummingbird)

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15
Q

Niche vs habitat

A

Niche- role/job of a species in its environment

Habitat- place where an organism usually lives

16
Q

Exponential graph

A

Does not show limiting factors. Population size grows slowly but then speeds up as individuals join the population.

17
Q

What are the two kinds of limiting factors ?

A

Density-Dependent and density-independent factors
DD-variable affected by the number of organisms presented in a given area (resource limitations like food shortages and are triggered by increasing population density)
DI-variable that affects the population regardless of the population density,such as climate,weather,floods,fires

18
Q

Population density

A

The number of individuals of the same species that live in a given unit of area