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8TH GRADE SCIENCE REVIEW 1 Flashcards | StudBud
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8TH GRADE SCIENCE REVIEW 1
What is the control group
What is genetic variation?
8TH GRADE SCIENCE REVIEW 1
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1
What is genetic variation?
The different genetics in organisms
The different traits of an organism
Differences between organisms
Differences caused by genes
2
What is the control group
Group that changes
Group that does not change
All of the above
Group that keeps everything different
3
Is this a positive, negative, or no correlation?
No correlation
All of the above
Positive
Negative
4
carry genetic information, hold DNA
eukaryotic
prokaryotic
nucleoli
chromosomes
5
Reaction time experiment: the dependent variable was:
Distance the ruler dropped
Time taken to catch the ruler
Type of distraction
6
Historians of science describe which 3 attitudes as the basis of the scientific viewpoint?
achievement-oriented, intellectual, empirical
intelligence, dedication, thoroughness
morality, detail-orientation, cynicism
curiosity, skepticism, humility
7
true/false. Even if a stressful situation does not go away the body can still restore homeostasis.___________
False
True
8
What is homeostasis?
the way the body maintains itself at an exact point
the way the body reacts to change
balance of the body's internal and external functions
balance of the body's functions within a safe range
9
Identify the dependent variable in the following hypothesis.
Amount of Water
Change in Viscosity
Change in Temperature
Amount of Calcium Chloride
10
Punnet squares predict possible outcomes of a genetic cross.
True
False
11
What is a scientific theory?
A well tested explanation for how something works.
An absolute truth.
The same as a hypothesis
A best guess about something.
12
Homeostasis is the condition in which the body maintains
a constant rate of cellular mitosis.
the lowest possible energy usage.
a relatively stable internal environment.
a static internal environment without deviation.
13
dependent variable is what
memes are good memes are nice
why should i know?
the factor that you purposefully change
change that occurs in response to the independent variable
14
The differences in finch beak observed by Darwin is an example of:
geologic change
fossil evidence
variation
artificial selection
15
What is pollination?
a full grown plant
carrying pollen from one plant to another
the plant beginning to grow
making more of the same plant
16
An example of commensalism is...
a butterfly and a flower
fleas and dogs
A sea anemone and a clownfish
A clown fish and a sea anemone
17
Which of the following is an example of Commensalism?
Bird and Deer
White Tailed Deer and Ticks
Ant and Thorn
Red Squirrel and Oak Tree
18
genetic mutations may be harmful,neutral, or beneficial
True
False
19
what are genetics?
a study of how traits are inherited
a trait that covered up a trait
20
This will be a positive correlation because both of the variables are...
decreasing
increasing
21
Animals have both physical and _____________ adaptations.
migration
structural
hibernation
behavioral
22
Type of symbiosis?
mutualism
parasite
commensalism
predator-prey
23
What type of protective coloration?
camouflage
mimicry
warning coloration
24
Symbiosis means...
interactions between two different species
interaction between two species living in close contact
any interactions between any two organisms
doggos
25
what is the independent variable?
responding variable
the thing you're observing
manipulated variale
the thing your testing
26
What are the two types of pollination?
By cat and dog
By wind or animal
By tornado and thunderstorm
By People and other plants
27
What is the independent variable in this graph?
Year
Mobile Phone Sales
28
What is competition?
one organism benefits and the other is not affected.
organisms of the same species work together to survive.
organisms fight within or between species for resources etc.
29
this is the independent variable
C
B
D
A
30
An insect resembles a stick is what type of protective coloration?
camouflage
warning coloration
mimicry
31
What does competition mean?
When 2 animals or plants work togther for resources.
When 2 animals or plants dont need certain resources.
When 2 animals or plants compete for resources.
When 2 animals or plants dont like each other.
32
Which method of dispersal doesthis seed use?
wind
water
explosion
animals
33
Tables and graphs are used to
All of the answer choices
make predictions
organize data
show trends
34
Some examples of graphs used in Science are:
All of the above
Line Graphs-used when variables affect each other
Histograms- continuous data
Bar Graphs- non numerical and discrete
35
who is the father of genetics?
Smith
Mendel
Krause
Matacio
36
What is the first step of the scientific method?
question/problem
summary
analysis
hypothesis
37
What is another word for protective coloration?
camouflage
hibernation
habitat
migration
38
What is a genetic mutation
rapid growth of cells
A change in genetic code
beneficial
neutral
39
what are the three symbiosis relationships
Competition and Competition and Commensalism
Commensalism and Parasitism and Territorial Imperative
Courtship and Mutualismm and Cooperation
Parasitism and Mutualism and Commensalism
40
One of the adaptations that Darwin noted about the species of finches was the . . .
similarities of the birds' embryos
number of eggs in each bird's nest
birds' different-shaped beaks
length of the birds' necks
41
What are adaptations?
Something the plants can use to get water.
Things that plants have hanging of their stem.
Things that help a living thing survive in an enviroment.
42
Structures that have a similar design but different function are called:
analogous structures
homologous strucures
vestigial structures
embryology
43
There are two temperature scales that are used in science, what are they called?
kelvin scale and triple beam balance
celsius scale and kelvin scale
gram scale and kelvin scale
fat scale and celsius scale
44
What is the independent variable in this graph?
Type of pet
Number of people
45
Do ticks commit parasitism
yesbbbb
Yes
yess
Ye
46
The scientific attitude of humility is most likely to be undermined by
the hindsight bias
correlational evidence
random assignment
naturalistic observation
47
What is a Hypothesis?
a tentative explanation for observations or a phenomenon
An answer
Involves series of ordered steps
A question
48
Mutualism means...
An interaction between two species in which both benefit
Teenage Mutant Ninja Turtles!
When something goes wrong and there is a mutation
A type of symbiosis
49
What is seed dispersal
When the wind, animals and water desperse a seed
When a human eat a seed
When only an insect or wind throw a seed
When a seed ''born''
50
Solve this punnet square
Tt: 2 tt: 2
TT: 4
TT: 3 Tt: 1
TT: 1 Tt: 3
51
What is symbiosis?
One species kills another for food
When different species compete for the same resources
More than one organism is trying to obtain the same resource
When 2 species of organisms live in close contact
52
what does genetic engineering mean?
making cars
food that has been altered at the gene level
technologies used to vhange the genetic makeup of cells
feeding relationship
53
What is an example of parasitism? (Choose the best answer!)
Slug crawling on a human.
A fish-eating dead skin of your feet.
Leech drinking blood of a human.
Human stealing drinking water.
