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Natural Sciences Clep > Rea Practice Test 1 > Flashcards

Rea Practice Test 1 Flashcards

1
Q

Cold blooded animals with bony skeletons, webbed feet, and separate sexes

A

Amphibia

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2
Q

Cold blooded animals with horny scales and bony skeleton that lay eggs

A

Reptilia

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3
Q

Cartilaginous fish

A

Chondrichthyes

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4
Q

Warm blooded animals mostly with wings that lay eggs

A

Aves

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5
Q

Animals with a hairy body and highly developed brain that have live births (in most cases) and produce milk

A

Mammalia

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6
Q

What is the communication channel between the cytoplasm and nucleoplasm

A

Nuclear pore

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7
Q

What are the extensions that provide an extra surface area for absorption

A

Microvilli

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8
Q

What contains digestive enzymes

A

Microvilli

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9
Q

Packets that carry substances (hormones, fats, etc) synthesized within the cell

A

Secretory vesicle

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10
Q

Network of membranes that deliver lipids and proteins throughout the cytoplasm

A

Smooth endoplasmic reticulum

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11
Q

What are examples are atoms that are held together with network covalent attraction

A

SiC

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12
Q

Examples of atoms held together with covalent attraction

A

HC2H3O2

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13
Q

Examples of atoms held together with metallic attraction

A

Cu

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14
Q

Bryophytes

A

Nonvascular plants

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15
Q

Flowering plants

A

Angiosperms

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16
Q

Shoots and roots

A

Angiosperms

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17
Q

Produce seeds without flowers

A

Gymnosperms

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18
Q

Conifers and cycads

A

Gymnosperms

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19
Q

If an athlete with a sore shoulder places a warm compress on it to transfer energy to soothe the muscle - what type of heat transfer is this

A

Conduction

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20
Q

On a cold February morning, a blow dryer system in a car warms up after several minutes and blows air through vents in the floor, dashboard, and windshield. Eventually the diver is able to unbutton his coat and stay warm when the outside temperature is still 23F. What is the type of heat transfer?

A

Convection

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21
Q

Getting ready for a fall cruise inspires a young lady to spend a couple weeks going to a local spa and reclining under a tanning lamp. However such practices might result in dangerous over exposure to ultraviolet rays that can lead to cancer or premature aging of the skin. What type of transfer is this?

A

Radiation

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22
Q

Substances that are strong oxidizing agents

A

KMnO4

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23
Q

The metal in this substance has an oxidation number of +2

A

MgO

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24
Q

The oxidation potential if this substance is 0

A

H2

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25
Q

Exponential population growth curve; population accelerates

A

J curve

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26
Q

Birth rate minus death rate

A

Population rate of growth

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27
Q

Death rate is aka

A

Mortality

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28
Q

Birth rate is aka

A

Natality

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29
Q

Logistic population growth curve; population growth accelerates and then slows down because of limits

A

S curve

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30
Q

The evolution of plant species is considered to have begun with

A

Aerobic prokaryotic cells

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31
Q

What type of wave is a sound wave

A

Compression

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32
Q

Salinity is a measure of dissolved solids in water. On average, 1,000 g of typical sea water contains 35g of salt. The level of salinity is below average in areas where large amounts of fresh water enter the ocean and above average in hot arid climates. The Mediterranean and the Red seas are adjacent to deserts. The water in these two areas would be expected to have what type salinity?

A

Above average salinity

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33
Q

Law of inertia , what would offer the greatest resistance to a change in motion? Golf ball, watermelon, feather, paper?

A

Watermelon

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34
Q

The site of transfer for nutrients water and waster between a mammalian mother and embryo is the ___

A

Placenta

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35
Q

The process of genetic inheritance was first investigated and explained by ___

A

Gregor Mendel

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36
Q

The first cells to evolve in Earth were most likely NOT

A

Specialized

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37
Q

Which of the following best represents the sequence of human evolution?

A

Australopithecus afarensis, Homo erectus, Cro Magnon, Modern Man

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38
Q

What is pi bonding and demonstrate

A

C2H2

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39
Q

The sun crosses the celestial equato going north on March 21 this is known as the

A

Spring equinox

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40
Q

Cells of eukaryotes have all the following

A

Membranes organelles, DNA organized into chromosomes, nucleus, and ribosomes

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41
Q

A small non protein molecule such as iron that works with enzymes to promote catalysis is known as

A

An inorganic cofactor

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42
Q

What will inhibit enzymatic reactions

A

Temperature, pH level, particular chemical agents , and lack of substrate

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43
Q

The conversion of light energy into chemical energy is accomplished by

A

Photosynthesis

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44
Q

The increase in the statistical disorder of a physical system

A

Entropy

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45
Q

Energy flows through the food chain from

A

Producers to consumers to decomposers

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46
Q

If the moon completely conveys the sun as seen by an earthbound observe there is a

A

Total solar eclipse

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47
Q

The projection of the Earths axis on the sky is the

A

Celestial poles

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48
Q

The process that releases energy for use by the cell is known as

A

Cellular respiration

49
Q

What is the sequence leading to human evolution

A

Coacervates, eukaryotes, plants, fish, amphibians, mammals, primates, man

50
Q

Why are water molecules attracted to each other

A

Polarity; partial positive charge near hydrogen atoms and partial negative charge near oxygen atoms

51
Q

The voltage across the terminal of a circuit containing a resistor is 12V and it contained a resistor connected to the circuit which reads 8 ohms. What is the amperage if the service

A

1.5 A

52
Q

The percentage of Earths surface water

A

70%

53
Q

Traits produced by the expression of more than one set of genes are known as

A

Polygenic traits

54
Q

The major driving force of the evolution of species is known as

A

Natural selection

55
Q

Which of the following items found on a bicycle is NOT a simple machine

A

Horn

56
Q

What is the heat of fusion

A

The Chang of state from liquid to solid or solid to liquid involves a phases where temp remains constant

57
Q

What crystal has, on average, one atom per cubic unit cell

A

Simple cubic crystals only

58
Q

Which is part of the alimentary canal

A

Esophagus

59
Q

The physical place where a particular organism lives

A

Habitat

60
Q

Why is nickel attracted into a magnetic field but solid zinc chloride is not

A

There are unpaired outer electrons in nickel

61
Q

The specific heat of water is 4.2J/g C. What mass of water will be heated by 10 C by 840j

A

20g

62
Q

A light year represents the

A

Total distance that an object travels in space at the speed of light in one year

63
Q

The half life of C 14 is 5730 years. A piece of cypress is measure to have 3/4 of the carbon to be C12 and 1/4 C14 . How many years old is this piece of wood likely to be?

A

11,460

64
Q

Igneous rock forms are commonly called

A

Granite

65
Q

Major structural regions of roots

A

Meristematic region, elongation region, root cal, and maturation region

66
Q

What is true about electrons

A

Electrons have less mass than protons and neutrons

67
Q

What is the energy generating mechanism of the state including the sun

A

Fusion

68
Q

When measuring the flow of heat in a system, a natural process that started at one equilibrium state and flowing into another will go in what direction for an irreversible process which is impacted by the entropy of the system plus the environment

A

Increase

69
Q

What is the resistance if an electric can opener if it takes a current of 10 A when plugged into a 120 V service

A

12 ohms

70
Q

Photosynthesis would not proceed without which of the following that allow moisture and gasses to pass in and out of the leaf

A

Stomata

71
Q

In ferns the individual we generally recognize as an adult fern is really which structure

A

A mature sporophyte

72
Q

What state of matter does not have a definite shape or volume

A

Gas and plasma

73
Q

A person who exercises vigorously begins to self eat and breathe rapidly . These reactions are involuntary responses known as

A

Homeostatic mechanisms

74
Q

Define : forebrain, Cerebrum, hypothalamus, cerebellum, midbrain

A

Forebrain- controls olfactory lobes (smell)
Cerebrum - controls sensory and motor response, memory, speech, and intelligence factors.
Hypothalamus - controls hunger and thirst
Cerebellum - controls balance and muscle coordination
Midbrain- contains optic love and controls sight

75
Q

Fog is

A

A collection of minute water droplets

76
Q

Land and sea breezes form because

A

Of a variety of factors involving temperature, pressure, and geographical components

77
Q

Why can An electric shock can restart a hear that has stopped beating

A

Cardio muscle or the heart responds to the electric shock

78
Q

What organs does a hamburger pass through

A

Mouth , esophagus, stomach, and small intestine
NOT Salivary glands

79
Q

Each ecosystem can support a certain number of organisms- a number usually designated by the letter K and known as

A

Carrying capacity

80
Q

Which if the following parts of an atom is a subatomic particle

A

A quark, boson, neutrino, and positron
NOT electron

81
Q

The function of the gallbladder and pancreas is to aid digestion by producing digestive enzymes and secreting them into the

A

Small intestine

82
Q

Many insects have special respirator organs known as

A

Spiracles

83
Q

Most of earths photosynthesis takes place in which of the following biomes

A

Oceans

84
Q

What is a replacement reaction - what does it look like

A

AB+C->AC+B

85
Q

The study of interactions of organisms with their living space is known as

A

Ecology

86
Q

What is the name of a distinct group of individuals that are able to mate and produce viable offspring

A

A species

87
Q

Einstein a theory of relativity

A

As energy increases, mass increases, and the speed of light is constant

88
Q

What is and autotroph and provide and example

A

Autotroph- produce their own food
An asparagus fern

89
Q

The michelson Morley experiment in 1887 proved that the speed of light is

A

Is the same in all directions

90
Q

What are the fundamental geological principles

A

Original horizontality
Lateral continuity
Fossil succession
Uniformitarianism
NOT supererogation

91
Q

Astronomers observing the redshift of light from a far away start means that the star is

A

Moving away from us

92
Q

The three most recent geological era

A

Cenozoic, Mesozoic, Paleozoic

93
Q

A form of symbiosis in which one species is benefited while the other is harmed is called

A

Parasitism

94
Q

An axis is

A

A connecting line between the poles

95
Q

In order of magnitude how many galaxies are there in the universe

A

Billions

96
Q

An astronaut it is traveling in a spacecraft that is slowing down. To the astronaut inside the spacecraft the apparent force inside the craft is directed

A

Forward

97
Q

Define prokaryotic

A

single-celled organism that lacks a nucleus and other membrane-bound organelles

98
Q

An imaginary object that centers in and surrounds earth by which background stars are projected is called—-

A

Stellar ball

99
Q

Why is the destruction of the ozone layer a serious concern

A

It will increase the amount of UV radiation reaching the ground

100
Q

Mountain and valley breezes form because of

A

Gravity and heating
Gravity pulls the cooler denser air down the hillsides into the valleys. Low pressure near the top of the mountain forces breeze up from the valley

101
Q

As you go down the periodic table and to the left, which traits increase

A

Atomic radius
Only the size of the atom increase

102
Q

Newtons law of motion, the greater the mass of an object the greater force is necessary change its

A

State of motion

103
Q

The top or peak of a sine wave is called the

A

Crest
the bottom is the trough, the amplitude represents the height of the wave, the period is the waves cycle length and the frequency is the number of cycles per second

104
Q

A wave does not carry alone the medium through which it travels , thus it follows that

A

Molecules of water in the ocean are pushed to shore by waves

105
Q

Graph for a sample of gas remaining at a constant temp
Y- volume
X- pressure

A

High volume low pressure to low volume high pressure at exponential decrease

106
Q

Graph for an object at constant speed

A

Linear positive graph

107
Q

Graph for a constant unbalanced forces acts on an object

A

Straight horizontal line

108
Q

What occurs in the mitochondria?

A

Citric acid cycle

109
Q

What is the site of protein synthesis in a cell?

A

Ribosome

110
Q

What is not genetically inherited ?

A

Tuberculosis

111
Q

Which disease can be controlled by dietary regulations?

A

Type 2 diabetes

112
Q

Result of photosynthesis, energy is stored in molecules as?

A

C6H12O6 glucose

113
Q

A person whose gallbladder has been removed has a decreased ability to store bike and therefore to digest ?

A

Fats

114
Q

The classification characteristics that define the genus of an animal or a plant are usually more general than those defining

A

A species

115
Q

Hard water is undesirable and is often softened because hard water

A

Forms insoluble precipitates when boiled or when used with soap

116
Q

Which adaptation is more likely to be found in the leaves of desert plants than those of plants that grow in moist regions?

A

A thickened epidermis and cuticle

117
Q

If all xylem from a section of tree trunk could be removed, which if the following would happen first?

A

The leaves would be unable to get sufficient water

118
Q

Whereas the ultimate source of energy for most organisms is sunlight the immediate source is

A

Chemical

Natural Sciences Clep (4 decks)

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