Chapter 1 Flashcards

(40 cards)

1
Q

Definition of biology:

A

This is the scientific study of life

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2
Q

What are the six characteristics of life?

A

-order
-adaptation
-stimuli
-homeostasis
-reproduction
-energy consumption

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3
Q

Do living organisms show order?
True or False?

A

True

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4
Q

In a population, individuals with favorable traits, will survive and reproduce at higher rates. What is this called?

A

Adaptations.

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5
Q

Living organisms, do not respond to changes in their environment true or false?

A

False.

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6
Q

Define homeostasis:

A

Balancing a specific range of internal conditions in spite of external environment.

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7
Q

This word describes a dynamic state of equilibrium in which internal conditions vary but within narrow limits what is the word?

A

Homeostasis

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8
Q

This occurs in a living organism when an accumulation of an end product inhibits the process. What is this called?

A

Negative feedback

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9
Q

In order for an organism to pass their genes along to a healthy, fertile offspring, what must the organism do hint, this is one of the characteristics of life

A

Reproduce

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10
Q

Do all living organisms, consume energy, true or false

A

True

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11
Q

Define biosphere

A

Region of earth that supports life

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12
Q

Define ecosystem

A

Specific area within the biosphere with common set of physical characteristics

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13
Q

Define community

A

Populations, living and interacting in a ecosystem

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14
Q

Define population

A

members of a species that live in the same community

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15
Q

Define species

A

Similar interbreeding organisms within a population

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16
Q

Define organism

A

An individual living thing containing complex organ systems

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17
Q

Define organs

A

A tissue with a specific vital function

18
Q

Define tissue

A

Group of cells with a common structure and function

19
Q

Define cell

A

Smallest unit of an organism that still demonstrates all basic characteristics of life

20
Q

Give a basic definition of a molecule

A

It is a Union of atoms

21
Q

What is the smallest unit of an element?

22
Q

The scientific method involves what ?hint five actions

A

-observation
-hypothesis
-experimentation
-collecting data
-conclusion

23
Q

Define hypothesis

A

An educated, guess based on information, you already know

24
Q

During this phase of the scientific method is when you test a hypothesis. What is this called?

A

Experimentation

25
The _______ variable is the cause.
Independent variable
26
The _____ variable is the effect.
Dependent variable
27
Define dependent variable
A variable that is changed or effected, measured
28
A value that is not affected by other variables in an experiment what is this variable called?
Independent variable
29
All experiments involve the collection of ______ and _____ data.
Quantitive and qualitative data
30
Basic definition of quantitive data
Numerical measurement
31
Basic definition of qualitative data
non-numerical descriptive observations
32
How do you counter the probability of a experimental result, occurring simply do the random chance?
By having a larger sample size
33
Bias is the capacity of influencing a result of an experiment. How do you counter bias in an experiment?
-blind experiment -double-blind experiment
34
Define scientific law
Description of an observed phenomenon they do not explain the phenomenon just simply state it
35
What field of biology studies cells?
Cell biology
36
Field of biology that studies, inheritance and chromosomes
Genetics
37
Field of biology that classifies different species to indicate how closely related they are
Taxonomy
38
Study of how organisms on present day earth came to be
Evolution
39
Study of plants
Botany
40
Study of material substances that make up living things
Bio chemistry