Exam 1 Flashcards

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1
Q

A complex individual that consist of organ systems is known as

A

organism

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2
Q

All organisms are composed of multiple cells

A

False

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3
Q

All ecosystems on the planet together are called

A

biosphere

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4
Q

Which of the following statements is most correctly defines homeostasis

A

Cells and organisms must be abe to maintain a fairly constant internal environment

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5
Q

The region in which population interact with each other and with the physical environment

A

ecosystem

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6
Q

The face of a flower turns to follow the sun as it moves across the sky

A

response to stimuli

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7
Q

not a basic characacteristic of living things

A

contain a nucleus and organelles

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8
Q

The developement of resistance of MRSA bacteria to antibiotics

A

evolution

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9
Q

Correct order of complexity/organization

A

cells/tissues/organs/organ systems/organism

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10
Q

Humans clear forest to grow crops

A

how humans interfere with the biosphere

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11
Q

not basic theory of biology

A

gravity

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12
Q

Protons equal to

A

electrons

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13
Q

elements occur naturally

A

92

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14
Q

atomic number equals

A

protons

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15
Q

Carbon dating is common method…neutrons does c14 have

A

8

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16
Q

Isotopes have different number of

A

neutrons

17
Q

radiation positive and negative effects

A

True

18
Q

Atoms that share electrons

A

Covalent

19
Q

bond responsible for holding water molecules

A

hydrogen

20
Q

Hydrogen bonds

A

weak and broken easily

21
Q

an acid solution

A

number of H+ id greater that OH-

22
Q

Joining small molecules together to form longer chains

A

dehydration reaction

23
Q

Not one of the four classes of organic molecules

A

vitamins

24
Q

After lunch will use dehydration to break food down

A

False

25
Q

Which polsaccharide is stored as an energy source in th body of plants

A

starch

26
Q

The main function of carbs is long term energy storage

A

False

27
Q

main fuction of carbs is for short term energy storage

A

True

28
Q

fat contains how many fatty acids

A

3