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7th Grade - Science Finals Review Flashcards | StudBud
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7th Grade - Science Finals Review
7th Grade - Science Finals Review
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#science
Flashcards
60 cards
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Practice quiz
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Questions
60
Answers
1
A boundary where 2 plates move towards each other.
Insurgent
Convergent
Transform
Divergent
2
How many parents are involved in asexual reproduction?
1
0
3
2
3
Scientists believe this layer of earth consists of mostly oxygen, aluminum, and silicon.
inner core
outer core
crust
mantle
4
Left over body parts that have no use are called....
Variations
limited structures
homologous structures
Vestigial Structures
5
a long, narrow, and steep depression that forms on the ocean floor from subduction?
trench
mountain
fissure
valley
6
Which is the best example of how knowledge of artificial selection affects life?
A person plants a garden in her backyard
A birdwatcher feeds seeds to birds
A dairy farmer breeds cows to produce more milk
A student watches a snake eat a mouse
7
What is an evidence of plate movement
forest fires
fossil remains of similar organisms in S. America & Africa
Similar animals on the same continent
mountain ranges that are different
8
Why aren't all structures in areas with geologic hazards built for maximum safety?
You can't protect against geologic hazards
it is too difficult
Geologic hazards can't be predicted
it is too expensive
9
What do a rat, eagle, and salmon have in common?
They can swim
They have legs.
They reproduce sexually.
They reproduce asexually.
10
Similar bone structures in cats, humans, and whales suggest that...
They had a common ancestor
they were born in the same location
They all fly
They all swim
11
sedimentary rock becomes metamorphic through
heat & pressure
wind & erosion
compacting & cementing
melting and cooling
12
A flower represents what type of reproduction?
nonsexual
asexual
sexual
unisexual
13
Geologists can determine whether a region was terrestrial or marine by studying
structure
genetics
fossil organisms
current environment
14
What advantage would this predator's camouflage give when hunting prey?
The spider won't get eaten
It blends in with the flower, so it can get nectar
The spider can make a web to capture prey
The prey won't be able to see the spider until it's too late
15
A characteristic that helps an organism survive and reproduce in its environment is called...
Adaptation
osmosis
Homologous Structure
Variation
16
The organisms that are best adapted for their environment survive and reproduce. This is called
Natural Selection
population dynamics
Genetic Variation
Selective Breeding
17
By studying fossils, scientists have developed a timeline of life on earth called...
plate tectonics
Natural Selection
Evolution
The fossil record
18
Areas found in the mantle where hot material rises and cooler material sinks
convection currents
conduction currents
radiation currents
ocean currents
19
Which of these is on the organelle level of life's levels of organization?
Lungs
Heart
Small intestine
mitochondria
20
Farmers have harvested and bred corn for what trait?
teosinte
smell
tall plants
large kernels
21
How does the function of the lungs affect the amount of oxygen and carbon dioxide in the blood?
help amount of O go up and carbon dioxide go down.
help amount of both carbon dioxide and oxygen go down .
They help the amount of O and carbon dioxide go up
help the carbon dioxide go up and oxygen go down
22
Parents are heterozygous for widows peak (Ww), what % would not get it? (W=widows peak, w=no widows peak)
100%
25%
75%
50%
23
What do we call similar bone structures that indicate a link to a common ancestor?
Vestigial Structures
species
evolution
Homologous Structures
24
The purpose in plants having seeds with “parachutes”, “wings”, “burrs”, or fruit is.
To disperse seeds
To escape predators
To attract a pollinator
To Allow the seeds to get a better view of the land
25
Which of these are evidence for evolution?
tails
Color
Intelligence
Fossils
26
If a baby antelope inherits slightly longer legs, how does that adaptation help it survive?
It will run slower, because its long legs get in the way
It will be faster and will likely survive to reproduce
It will be more attractive to other antelope
It will be taller, so it can see farther away for hunting
27
The picture shows a diagram of a human liver. What level of organization is the liver?
Organ
Organism
Cell
Tissue
28
A time when no sediments were preserved in a region is called
superposition
an unconformity
uniformitarianism
deposition
29
Which type of reproduction results in offspring that are most different from the parent
non-sexual
sexual
unisexual
asexual
30
Which type of reproduction results in offspring that are different from the parent organisms?
asexual
acquired
nonsexual
sexual
31
Which of the following is an example of genetic engineering?
breeding a mule (from donkey and horse)
Rats that glow
breeding closely related huskies
picking a flower
32
The process by which moving material is laid down
deposition
erosion
decomposition
cementation
33
Which is the correct order of the levels of body organization from simple to complex?
organism, tissue, organ system, organ, cell
cell, organ, organ system, tissue, organism
organism, organ system, organ, tissue, cell
cell, tissue, organ, organ system, organism
34
Which of the following would you find in a plant cell but not in an animal cell?
Chloroplast and cell wall
Cell wall and cytoplasm
Chloroplast and cytoplasm
Nucleus and Chloroplast
35
Sediment comes from?
Compacting & Cementing
Heat & Pressure
Cooling
Weathering
36
The Earth's largest layer and consists mostly of magnesium, silicon and iron
mantle
crust
outer core
inner core
37
To make an older building safer or reinforce a structure is known as?
retrofitting
safety reconstruction
safety reconstruction
remodeling
38
fossils only appear in which type of rock?
igneous
metamorphic
sedimentary
39
What adaptive advantage does the Bull snake have because of it's similarity to the Diamondback?
The body length is not visible when the snake is coiled.
The colors and patterns provide good camoflage
The head shape is best for biting and swallowing prey.
Predators leave it alone because it might be poisonous.
40
In order for metamorphic rock to become igneous rock it must....
cool, then melt
be broken down
melt
melt, then cool
41
Rocks are formed with the oldest layers on the bottom and the youngest layers on the top is
unconformities
erosion
uniformitarianism
superposition
42
Which event happened first in Earth History?
photosynthesis
dinosaurs
land plants
humans
43
What do you know about the density of the water?
It is more dense than the alcohol and the oil
It is more dense than the plastic cube and corn syrup
It is the same density as the alcohol
It is less dense than the alcohol and the corn syrup
44
Where do earthquakes mostly occur?
along plate boundaries
in California
under buildings
on volcanoes
45
Which of the following statements best explains why Earth is layered?
order by size, large in center, small outside
order by density, most dense in center, least dense outside
order by weight, heavier to the center, lighter outside.
order by temperature, hottest in center, coolest outside.
46
Which is not an example of evidence that shows how animals have evolved
A human growing their hair really long
Darwin’s finches and their beaks
Bones in giraffes show necks getting longer over time
Horses getting hooves instead of toes
47
How do the root systems benefit grasses?
they make food for the plant
they make sugar from air and sunlight
it makes it impossible for the plant to die
they firmly anchor the plant to the ground
48
The best form of evidence to show the age and history of the earth comes from?
geologists
the motion of plates
living organisms
fossils
49
New construction can be made safer by
building on soft ground
anchoring to bedrock
using the cheapest building materials
making the first story of a building the smallest
50
ribbon-like layers are a property of which type of rock
metamorphic
sedimentary
igneous
51
Breeding of cows to produce the most milk is
smart because milk is delicious
natural selection
cloning
artificial selection
52
Where are most volcanoes found?
in the center of the earth
along the plate boundaries
in the ocean
in the mountains
53
The gradual change in a species or population over a period of time is called..
Adaptation
Genetics
plate tectonics
Evolution
54
What are the round green structures in this picture, and what is its job?
It is a chloroplast and it makes food for the plant cell
It is the nucleus and it controls cell functions.
It is the cell wall, it provides structure and support
It is the membrane, controls what comes in or out
55
a break in a body of rock along which one block slides relative to another
crack
trench
fissure
fault
56
Why is most of Earth’s iron and nickel found in the Earth’s core?
They have a lower density than most of Earth’s materials
They have a higher density than most of Earth’s materials
They are heavier than most of Earth’s materials
They are lighter than most of Earth’s materials
57
Gene therapy _______________________.
treats a genetic disease
tests a person's DNA for mutations
identifies a suspect
is a way to talk through your genetic problems
58
Which geologic feature is a slow process?
stream erosion
Earthquake
Landslide
volcanic eruption
59
The bending, tilting, molding of earth materials in response to stress
deposition
erosion
cementation
deformation
60
Why did birds on the Galapagos Islands have different beaks than birds on the mainland?
Had different food to eat
they thought it looked prettier
Had different predators
