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7th grade MCA review Flashcards | StudBud
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7th grade MCA review
7th grade MCA review
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Questions
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Answers
1
What kind of statement is this "the texture of the sandpaper is rough"?
Qualitative observation
quantitative observation
inference
2
Some traits, like hair color, have more than two phenotypes, how is that possible?
they are recessive
they are controlled by more than one gene
they are dominant
they are controlled by only one gene
3
How to you protect yourself from a virus?
antifungal
antibiotic
vaccine
antiparasitic
4
What is the function of the circulatory system?
pumps oxygen and nutrients around the body in blood
sends signals to the brain
gets rid of waste
support and strength for the body
5
Which of the following is used to determine common ancestry?
fossil evidence
genetic evidence (DNA)
biological evidence like vestigial structures
all of the above
6
If offspring are genetically identical to their parent what kind of reproduction is that?
mitosis
sexual reproduction
asexual reproduction
7
Planting tomatoes and giving them different amounts of fertilizer is what kind of experiment?
review of existing work
field study
model
controlled experiment
8
Genetic mutations are?
all of the above
always harmful
always helpful
cause no change
9
What two things does the jackal eat?
snake and owl
rabbit and mouse
goat and lion
goat and rabbit
10
What structures to plant cells have that animal cells do not?
vacuoles and nucleus
cell membrane and mitochondria
chloroplast and cell wall
cell wall and nucleus
11
consumers break food down to get energy from the things they eat. what is this process called?
photosynthesis
parasitism
mutualism
cellular respiration
12
Which of the following organisms is a tertiary consumer?
hawk
plant
snail
fish
13
Which of the following have specialized cells?
bacteria, plants, animals
fungi, plants, animals
archaea, bacteria, protists
archaea, protists, plants
14
What kind of cell is this?
prokaryotic
multicellular
eukaryotic
autotrophic
15
Which of the following is a predator?
rock
tree
snail
fox
16
A piece of a chromosome that codes for a trait is a?
gene
nucleus
DNA
cell
17
What kind of statement is this "there is a hole in the acorn that is 27mm in diameter"?
inference
quantitative observation
Qualitative observation
18
Define autotroph
an organism that makes its own energy
an organisms that has no nucleus in its cells
an organisms that gets energy from another organism
an organism with a nucleus in it's cells
19
All the leopard frogs in a pond are a(n)
ecosystem
population
organism
community
20
Define heterotroph
an organism that makes its own energy
an organism with a nucleus in it's cells
an organisms that gets energy from another organism
an organisms that has no nucleus in its cells
21
The bell rings and students get up and move to their next class. This is what kind of behavior?
Learned
Instinct
22
If you get a virus what medicine do you take?
none, there is no cure for a virus
antiparastic
antifungal
antibiotic
23
What are chromosomes made of?
DNA
nucleus
cells
24
The original source of energy for your food is
plants
animals
sunlight
oxygen
25
Calculate the median: 1 2 3 4 5
5
15
4
3
26
If a mouse lost it's tail in a mouse trap how likely is it their children won't have tails?
25% tails are recessive
0% acquired traits are not passed on
50% tails are dominant and recessive
100% tails are dominant
27
What medicine would you take if you got strep throat (bacteria)?
vaccine
antibiotic
antiparasitic
antifungal
28
which of the following is the correct order from smallest to biggest
organ, cell, organ system, tissue, organism
tissue, cell, organism, organ system, organs
cell, tissue, organ, organ system, organism
organism, organ system, organ, tissue, cell
29
Which organism is the host and which is the parasite?
the person is the host and parasite
the leech is the host and parasite
the person is the host the leech is the parasite
the person is the parasite, the leech is the host
30
Dependent variable? How does the temp of the water affect how fast a planaria can regrow?
amount of water
amount of light
temperature of water
planaria growth
31
Your heart is made of many tissues, that make it a(n)...
cell
tissue
organ system
organ
32
What is the volume of the hammer?
4 mL
65 mL
58 mL
69 mL
33
Which organism is most closely related to the salmon?
lizard
hamster
salamader
chimpanzee
34
What tool would you use to find the volume of a liquid
graduated cylinder
thermometer
balance
ruler
35
All the leopard frogs, lilypads, snails, water, and mud in the pond are
organism
ecosystem
population
community
36
Independent variable? How does the temp of the water affect how fast a planaria can regrow?
temperature of water
amount of water
amount of light
planaria growth
37
For an organ system to function properly the organs must
function independently of on another
be made of the same tissue
work together
all perform the same job
38
If a species is best suited for its environment and reproduces at a higher rate, that is?
adaptation
overproduction
natural selection
evolution
39
The following is eukaryote, multicellular, heterotroph. What kingdom does it belong to?
Fungus
Bacteria
Protist
Archaea
40
What is the job of a red blood cell?
contract and relax
send signals
carry gases
support
41
What effect would logging and removing all the trees have on this ecosystem?
animal population will increase
gases like oxygen and carbon dioxide will increase
nutrients will increase
animal population will decrease
42
Which level of the energy pyramid has the least available energy?
top
middle
bottom
43
Which of the following organisms is a primary consumer?
plant
small fish
snail
large fish
44
All the leopard frogs, lilypads, snails, trees, fish, and other living things in the pond are
population
community
organism
ecosystem
45
Babies cry immediately when they are born. This is what kind of behavior?
Learned
Instinct
46
The following is prokaryote, unicellular, lives in hot springs. What kingdom does it belong to?
Fungus
Bacteria
Protist
Archaea
47
What body system is this?
muscular system
nervous system
respiratory system
digestive system
48
Which animal pictured is the prey?
fish
bear
water
49
Which beetles have an adaptation?
green
brown
neither
both
50
T or F. Cells are the smallest unit of life.
False
True
51
What two things beside sunlight does a plant need to do photosynthesis?
carbon dioxide, water
oxygen and glucose
carbon dioxide and oxygen
carbon dioxide and glucose
52
White flower color is dominant to red. What percent of the flowers will be white?
50
25
100
75
53
What process is pictured?
photosynthesis
cellular respiration
mitosis
homeostasis
54
What is one biotic factor in this picture?
sun
water
oxygen
tree
55
What is the mass on this balance?
27.5 g
127.7 g
27.7 g
277 g
56
Which of the following is true about the difference between extinction and mass extinction?
extinction is rare
mass extinction is many organisms dying at once
mass extinction happens every day
nothing
57
What is the job of the immune system?
gets rid of waste
protect body against disease
exchange gases
move blood throughout the body
58
Calculate the mean: 1 2 3 4 5
15
3
4
5
59
Which level of the energy pyramid has producers?
middle
bottom
top
60
True or false. Vaccines make you sick.
True
False
61
Because the following organisms all have similar structures what does that suggest?
nothing
they have a common ancestor
they can all fly
they are clones
62
Calculate the range: 1 2 3 4 5
3
15
5
4
63
True or false. An individual can evolve.
False
True
64
A specialized cell is one that has
no function
a specific function
more than one function
a general function
65
Which step of the scientific method is this: "Why is my hamster larger than my friends?"
problem/question
hypothesis
experiement
conclusion
66
In 1972 the pesticide DDT was banned. How did the ban affect the bald eagle population?
the population rose
the population declined
no effect
there is not enough information to tell
67
The following is eukaryote, unicellular, heterotroph. What kingdom does it belong to?
Protist
Bacteria
Fungus
Archaea
68
Any change in DNA is called?
mutation
breed
pedigree
clone
69
What tool would you use to measure the mass of a paperclip?
graduated cylinder
balance
thermometer
ruler
70
Which step of the sci method? Hamsters get larger with more protein, according to my data
experiment
conclusion
hypothesis
problem/question
71
Which of the following are living things? A. Battery B. Bacteria C. Mushroom
All of the above
B and C
A and C
A and B
72
Jane Goodall living in the jungle studying gorillas is an example of what?
controlled experiement
review of existing work
field study
model
