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Flashcards in Chapter One Deck (19)
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1
Q

The hierarchy of life

A

Atom>Molecule>organelle>cell>tissue>organ>organ system>organism

2
Q

State the levels of organization

A
1- Organism
2- Population
3- Biological community
4- Ecosystem
5- Biosphere
3
Q

Define autotrophs

A

Organisms that make their own food

4
Q

Define phototrophs

A

Organisms that use photosynthesis to get energy

5
Q

Define chemotrophs

A

Organisms that use different chemical processes to get energy

6
Q

Define heterotrophs

A

Organisms that must take in food to meet their energy needs

7
Q

Define evolution

A

When the populations of living organisms evolve or change over time to better adapt to changing conditions

8
Q

Name the three domains

A

Bacteria, Archaea, and Eukarya

9
Q

Name the six kingdoms

A

Bacteria, Archaea, Animalia, Plantae, Fungi, and Protista

10
Q

What is descent with modification?

A

The process in which the inherited characteristics within populations change over generations, so that there’s a genetically distinct population, and new species can develop

11
Q

What is a spontaneous generation?

A

The theory that life can arise from nonliving matter

12
Q

What is the manipulated variable?

A

The independent variable

13
Q

What is the responding variable?

A

The dependent variable

14
Q

What is a compound light microscope?

A

A microscope that allows light to pass through the specimen and uses two lenses to form a new image

15
Q

What is an electron microscope?

A

A microscope that produces images by focusing beams on electrons

16
Q

Define cell culture

A

A group of cells that is used to test so responses under controlled conditions.

17
Q

What is cell culture used for?

A

To study the interaction between cells, and to select specific cells for further study

18
Q

Define cell fractionation

A

A process that is used to separate different cell parts

19
Q

Define quantitative observation

A

Observation that involves numbers