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Science > Biology (9th Grade) > Flashcards

Biology (9th Grade) Flashcards

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Biology 101 flashcards
1
Q

The study of life

A

Biology

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2
Q

Characteristics of life

A 
A. Order
B. Growth and development
C. Energy processing
D. Response to the environment
E. Regulation
F. Reproduction
G. Evolutionary adaptation
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3
Q

Order

A

All living things must have at least one cell (basic unit of life)
Highly organized structures in their cells, tissues, organs, and organ systems
DNA

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4
Q

Growth and Development

A

Organisms grow and develop along a specific sequence based on the instructions present in their genes
Growth- an increase in size and number of cells

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5
Q

Energy processing

A

Organisms must have a source of energy to fuel the reactions that process materials into usable forms
Metabolism…?

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6
Q

Response to the environment

A

Living things have the ability to respond to changes in their environment called stimuli…?

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7
Q

Regulation

A

Organisms must maintain a specific range of internal conditions in spite of the outside changes.
This balance is called homeostasis
How they do that is called regulation

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8
Q

Reproduction

A

All life has to have the ability to reproduce, passing their genes along to healthy and fertile offspring
Sexual- 2 parents, offspring combo
Asexual- 1 parent, offspring identical

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9
Q

Evolutionary adaptation

A

Individuals with favorable traits in a population will survive and reproduce at higher rates
These traits are called evolutionary adaptations

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10
Q

The sneaky exception

A

Viruses
Non-living particle made of proteins, nucleic acids and come items liquids (NO CELL)
Can only reproduce by infecting other cells
Doesn’t grow and develop, use energy, or respond to stimuli

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11
Q

Part of earth that supports life

A

Biosphere

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12
Q

A specific area within the biosphere with a common set of physical characteristics (climate, soil, landforms)

A

Ecosystem

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13
Q

Biological _______ is made of all populations living and interacting in one ecosystem

A

Community

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14
Q

A _______ includes all members of a species that live in the same community

A

Population

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15
Q

An _______ is an individual living thing

A

Organism

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16
Q

Scientific method

A

Scientific method

17
Q

1

A

Observing and asking questions

notice and describe in an orderly way

18
Q

2

A

Forming a hypothesis

statement that explains observations or predictions

19
Q

3

A

Conducting controlled experiments

20
Q

What is changed in experiment

A

Independent variable

21
Q

What we measure

A

Dependent variable

22
Q

Same throughout experiment

A

Constant

23
Q

4

A

Collecting and analyzing data

24
Q

Numerical

A

Quantitative

25
Q

Descriptive

A

Qualitative

26
Q

5

A

Drawing conclusions

Do the results support the hypothesis

27
Q

Probability

A

Helps to predict the likeliness of an experiment result occurring simply due to random chance
(The effects of random chance are countered with having a large sample size in the experiment)

28
Q

When scientists or patients influence the data to produce a specific result. Not always intentional

A

Bias

29
Q

Prevents the experimental subjects from knowing whether they are in the control or the experimental group. Eliminates the placebo effect

A

A blind experiment

30
Q

Prevents both the scientists and experimental subjects from knowing whether they are in the control or experimental group

A

Double blind experiment

31
Q

Large and broad explanations composed of many hypotheses and experimental results
Shouldn’t be confused with hypotheses

A

Theories

32
Q

Description of an observes phenomenon

They don’t explain phenomenon, just state it

A

Scientific law

33
Q

The study of the world around us by gathering data and information to learn how things work (understand and explain) by using a systematic process (research and experiments)

A

Science is…

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