Chapter 1 The Science Of Biology Flashcards

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0
Q

Observation

A

The use of one or more senses to gather information

Sight, hearing, touch, smell, and taste

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1
Q

Science

A

Organized way of using evidence to learn about the natural world; also the body of knowledge that scientists have built up after years of using this process

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2
Q

Hypothesis

A

It is the possible explanation for a set of observations or the creation of a question of study

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3
Q

Biology

A

The study of science in the living world, seek understanding

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4
Q

Data

A

Evidence,information gathered from observations and experiments

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5
Q

Homeostasis

A

The process by which organisms maintain a relatively stable internal environment

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6
Q

Metabolism

A

The set of chemical reactions of when an organism builds up or breaks down materials as it carries out its life process

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7
Q

Stimulus

A

A signal to which an organism responds too

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8
Q

Cell

A

The collection of living matter enclosed by a barrier that separates the cell from its surroundings, the basic unit of all forms of life

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9
Q

Theory

A

A well tested explanation that combines a variety of observations

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10
Q

Spontaneous generation

A

Hypothesis (disproven) stating that life could arise from non living matter

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11
Q

Controlled experiment

A

A test of the effect of a single variable by changing it while keeping all variables the same

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12
Q

Manipulated variable

A

Factor in an experiment that a scientist purposely changes; also known as independent variable

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13
Q

Conclusion

A

Is the results and data collected that concluded to an explanation describing the final result

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14
Q

Biosphere

A

Part of Earth in which life exists including land, water and air or atmosphere

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15
Q

Community

A

Assemblage of different populations that live together in a defined area

16
Q

Cell culture

A

Group of cells grown in a nutrient solution from a single original cell

17
Q

Compound light microscope

A

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

18
Q

Electron microscope

A

A microscope that forms an image by focusing beams of electrons onto a specimen

19
Q

Cell fractionation

A

Technique in which cells are broken into pieces and the different cell parts are separated

20
Q

Ecosystem

A

Collection of all the organisms that live in a particular place, together with their non living environment

21
Q

Organism

A

Group of tissues that work together to perform closely related functions

22
Q

Populations

A

Group of individuals of the same species that live in the same area

23
Q

SEM

A

Scan a narrow beam of electrons back and forth across the surfaces of a specimen

24
Q

Metric system

A

Decimal system of measurement based on certain physical standards and scaled on multiples of 10

25
Q

Sexual reproduction

A

Process by which cells form two different parents unite to produce the first cell of a new organism

26
Q

Asexual reproduction

A

The process of which one parent produces an identical new organism

27
Q

TEM transmission electron microscope

A

Shine a beam of electrons through a thin specimen

28
Q

Variable

A

Factor in the experiment that can change

29
Q

Specimen

A
an individual animal, plant, piece of a mineral, etc., used as an example of its species or type for scientific study or display.
an example of something such as a product or piece of work, regarded as typical of its class or group.
30
Q

Characteristics of life

A
  • made up of units called cells
  • can reproduce
  • are based on a universal genetic code
  • can grow and develop
  • obtains and use materials and energy
  • responds to their environment
  • maintain a stable internal environment
  • taken a group, living things change over time
  • -
31
Q

Levels of organization

A
  • atoms
  • molecules
  • organelles
  • cells
  • tissues
  • organs
  • organ system
  • organism
  • population
  • community
  • ecosystem
  • biosphere