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Science > Chapter 3.1 Nutrition And Energy > Flashcards

Chapter 3.1 Nutrition And Energy Flashcards

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Biology 101 flashcards
1
Q

Define ecology

A

Study of the interaction among organisms and between organisms and their environment

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2
Q

What do ecologists study?

A

The flow of energy through communities to discover nutritional relationships between organisms

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3
Q

What is the main energy source for life on earth?

A

The sun

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4
Q

What are autotrophs?

A

Organisms that use sunlight or energy stored in chemical compounds to make food

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5
Q

What are the two different processes autotrophs use to make food?

A

Photosynthesis

Chemosynthesis

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6
Q

What is photosynthesis?

A

The process used by autotrophs to make food energy from sun.

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7
Q

What are some examples of organisms that use photosynthesis to make food?

A

Plants, algae, cyanobacteria

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8
Q

What is chemosynthesis (chemoautotroph)?

A

Autotrophs that capture chemical energy since they live in places without sunlight

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9
Q

What are some examples of organisms that use chemosynthesis?

A

Bacteria found in volcano vents
Hot springs
Tidal marshes

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10
Q

What is a heterotroph?

A

Organisms that rely on other organisms for their energy and food supply.

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11
Q

What is another name for an autotroph?

A

Producer

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12
Q

What is another name for a heterotroph?

A

Consumer

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13
Q

What are some types of heterotrophs?

A

Herbivores
Carnivores
Omnivores
Detrivores

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14
Q

What is a herbivore?

A

Organism that eats only plants

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15
Q

What is a carnivore?

A

Organism that eats only animals

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16
Q

What is an omnivore?

A

Organism that eats both plants and animals

17
Q

What is a detrivore?

A

Organism that eats plant and animal remains

18
Q

What are some examples of herbivores?

A

Cows, caterpillars, deer

19
Q

What are some examples of carnivores?

A

Snakes, owls, sharks

20
Q

What are some examples of omnivores?

A

Humans, bears, crows

21
Q

What are some examples of detrivores?

A

Worms, crabs, mites

22
Q

What is a decomposer?

A

An organism that breaks down organic matter

23
Q

What are some examples of decomposers?

A

Bacteria and fungi

24
Q

Is a decomposer a heterotroph or autotroph?

A

Heterotroph

Science (37 decks)

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