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Science > Unit 1 The Study of Life > Flashcards

Unit 1 The Study of Life Flashcards

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Biology 101 flashcards
1
Q

includes all living things on Earth

A

Biosphere

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2
Q

Where is more life found?

A

More life is found near the equator

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3
Q

Why is there more life near the equator?

A

Warmer climate/ no seasons

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4
Q

T/F: Every part of the biosphere is connected

A

True

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5
Q

one particular type of living things

A

species

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6
Q

T/F: All organisms do not have certain characteristics

A

False
All organisms DO have certain characteristics

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7
Q

scientific study of all forms of life

A

Biology

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8
Q

any living thing

A

organism

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9
Q

What are the 4 qualifications to be a living thing ?

A

-Made of 1 or more cells
-need energy for metabolism
-respond to their environment
-all pass DNA to their environment

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10
Q

All levels of life have _______ of related parts.

A

systems

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11
Q

an organized group of interacting parts

A

system

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12
Q

system of chemicals and processes

A

cell

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13
Q

includes organs that interact

A

body system

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14
Q

includes living and nonliving things

A

ecosystems

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15
Q

T/F: Structure and Function are related in biology

A

True

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16
Q

What determines function?

A

Structure

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17
Q

T/F: Proteins with different structures perform the same functions.

A

False
Proteins with different structures perform different functions.

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18
Q

What has a different structure and function than stomach muscle cells?

A

Heart muscle cells

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19
Q

Different _____ have different animatic shaped with different functions

A

species

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20
Q

What must organisms maintain to survive in diverse enviroments?

A

Homeostasis

21
Q

the maintenance of constant internal conditions

A

Homeostasis

22
Q

How is homeostasis usually maintained?

A

Through negative feedback

23
Q

What do negative feedback systems do?

A

Return a condition to its normal (set.) point

24
Q

What can help maintain homeostasis?

A

Behaviors and Adaptations

25
Q

What is observing?

A

Using the senses of tool to gather info

26
Q

What is forming a hypothesis?

A

Asking a question that tries to explain the observations

27
Q

What is testing a hypothesis?

A

collecting data to support or reject hypothesis

28
Q

What is analyzing data?

A

a statistical analysis of data to draw conclusions

29
Q

What is evaluating results?

A

data + conclusions are studies to determine validity

30
Q

What is an experiment?

A

use ind. + dep. variables to find cause and effect relationships

31
Q

Independent variables are…

A

manipulated

32
Q

Dependent variables are…

A

observed and measured

33
Q

What is a constant?

A

any condition kept the same to see the effect of the cause

34
Q

a proposed explanation for a wide range of observations + experimental results that is supported by a wide range of evidence

A

theory

35
Q

Can theories change?

A

Yes

36
Q

What does imaging technology provide?

A

Provides an enlarged image of an object

37
Q

shines light through a specimen + has 2 lenses to magnify an image

A

light microscopes (LM)

38
Q

Can the specimen be alive for a light microscope?

A

yes

39
Q

passes a beam of electrons over the specimens surface to show a 3-D image

A

scanning electron microscopes (SEM)

40
Q

What two microscopes does there have to be a vacuum room?

A

Scanning electron microscopes (SEM)
Transmission electron microscope (TEM)

41
Q

What microscope do you have to spray your specimen with metal?

A

Scanning electron microscopes (SEM)

42
Q

Can your specimen be alive with a Scanning electron microscope (SEM)?

A

No

43
Q

passes a beam of electrons through a thin slice of specimen to show a 2-d image

A

Transmission electron microscope (TEM)

44
Q

What microscope do you have to spray your specimen with glue?

A

Transmission electron microscope (TEM)

45
Q

Can your specimen be alive with a Transmission electron microscope (TEM)?

A

No

46
Q

Increase of an object’s apparent size

A

Magnification

47
Q

power to show details clearly in an image

A

Resolution

48
Q

single, standard of measurement based on powers of 10

A

Metric System

49
Q

a segment of DNA that stores genetic info

A

Gene

Science (2 decks)

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