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Worksheets7th Grade Final
Total questions: 108
Worksheet time: 4hrs 10mins
Name
Class
Date
1.
The period of time from the beginning of one cell division to the beginning of the next.
a)
cell cycle
b)
metaphase
c)
interphase
d)
cytokinesis
2.
A _______________ is a structure made of DNA and protein in the nucleus of eukaryotic cells.
a)
organelle
b)
chromosome
c)
bacteria
d)
daughter cell
3.
____________________ is the process of one cell dividing into two daughter cells.
a)
interphase
b)
prophase
c)
chromosome
d)
cell division
4.
During which phase do the chromosomes line up across the center?
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
5.
In this phase, the nuclear membrane begins to form and the new cells begin to separate.
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
6.
The longest stage of the cell cycle where the cell grows and develops.
a)
Interphase
b)
prophase
c)
metaphase
d)
cytokinesis
7.
In this stage, each set of chromosomes is pulled to the opposite sides of the cell.
a)
cytokinesis
b)
anaphase
c)
telophase
d)
interphase
8.
The cytoplasm divides and two new daughter cells form.
a)
cytokinesis
b)
interphase
c)
prophase
d)
telophase
9.
During ______________________, the nucleolus disappears and chromosomes are visible
a)
Interphase
b)
Prophase
c)
anaphase
d)
cytokinesis
10.
Fill in the missing phase. __________, metaphase, anaphase, telophase.
a)
prophase
b)
cytokinesis
c)
cell division
d)
mitosis
11.
True or false? Mitosis creates two identical body cells.
a)
True
b)
False
12.
Structure (b) is a ____.
a)
chromosome
b)
chromatid
c)
centromere
13.
The phase of mitosis shown is
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
14.
In asexual reproduction, all of the offspring are:
a)
Physically Identical
b)
Genetically Identical
c)
Physically and Genetically Identical
d)
Not Identical
15.
a)
budding
b)
sporulation
c)
vegetative propagation
d)
binary fission
16.
a)
budding
b)
binary fission
c)
sporulation
d)
regeneration
17.
How many parent(s)are needed for asexual?
a)
4
b)
1
c)
9
d)
100
18.
What are some of the facts about asexual reproduction?
a)
Takes only one mate to reproduce and takes a longer time to reproduce
b)
Takes a shorter amount of time to reproduce and it takes two mates to reproduce
c)
Reproduces diverse offspring and takes a longer time to reproduce
d)
Takes only one mate to reproduce and takes a shorter time to reproduce
19.
What is an advantage of sexual reproduction?
a)
Allows genetic variation
b)
Only needs one parent
c)
Happens very quickly
d)
Offspring are exact copies of parent
20.
Offspring's genes are identical to each other
a)
asexual
b)
sexual
c)
both
21.
Offspring's genes are identical to parent
a)
asexual
b)
sexual
c)
both
22.
Occurs in bacteria, sponges, starfish
a)
asexual
b)
sexual
c)
both
23.
Genetic material is mixed
a)
asexual
b)
sexual
c)
both
24.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
25.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
26.
T - tall and t = short
In the punnett square below, what belongs in the missing square
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
27.
B = brown eyes
b = blue eyes
What is true about these two brothers that have brown eyes?
One has genotype BB the other Bb.
b = blue eyes
What is true about these two brothers that have brown eyes?
One has genotype BB the other Bb.
a)
they have same phenotype and genotype
b)
they have different genotypes and phenotypes
c)
they have same phenotype but different genotypes
d)
they have same genotype but different phenotypes
28.
AA and Aa always show up as
a)
dominant
b)
recessive
29.
aa always shows up as
a)
dominant
b)
recessive
30.
Aa is
a)
homozygous
b)
heterozygous
31.
What ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness?
a)
0 in 4
b)
1 in 4
c)
2 in 4
d)
4 in 4
32.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
33.
Which of the following is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
34.
Which of the following is homozygous dominant?
a)
Yy
b)
Y
c)
yy
d)
YY
35.
Which of the characteristics is a lion least likely to pass on to its offspring?
a)
fur color
b)
length of tail
c)
scars on leg
d)
body size
36.
In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?
a)
rr
b)
R
c)
RR
d)
RR or Rr
37.
Each one of the boxes on the Punnett Square represents what probability of an offsprings' genotype?
a)
25%
b)
1%
c)
10%
d)
0%
38.
What ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness?
a)
0 in 4
b)
1 in 4
c)
2 in 4
d)
4 in 4
39.
A living or once-living organisms in an ecosystem is a
a)
population
b)
biotic factor
c)
abiotic factor
d)
community
40.
A nonliving element in an ecosystem is an
a)
animal
b)
abiotic factor
c)
biotic factor
d)
organism
41.
Temperature, light, air, water, and soil are all _____ parts of the environment
a)
alive
b)
biotic
c)
abiotic
d)
living
42.
Limiting factors are sometimes helpful because they can keep the population from getting too large.
a)
True
b)
False
43.
A system made up of organisms interacting with one another
a)
biology
b)
abiotic
c)
biotic
d)
ecosystem
44.
A group of the same type of organisms living in the same place at the same time.
a)
threatened species
b)
populations
c)
community
d)
limiting factor
45.
Deserts, mountains, and rivers are all examples of ________.
a)
vacation spots
b)
tundra
c)
ecosystems
d)
wetlands
46.
Which best explains why many kinds of plants and animals can live together in an ecosystem?
a)
The plants and animals are all part of a food chain and depend on each other to live.
b)
Plants and animals are interdependent of one another.
c)
One species may overpopulate, killing all plant life.
d)
Over population of a species results in a biodiversity.
47.
Which group do fungi, bacteria, and termites belong to?
a)
decomposers
b)
producers
c)
herbivores
d)
omnivores
48.
Which organism make their own food through the process of photosynthesis?
a)
decomposer
b)
consumer
c)
herbivore
d)
producer
49.
Field mice eat corn. Which would most likely happen if the field mouse population grew?
a)
There would be more corn to feed the field mice.
b)
There would be less corn due to the mice eating it.
c)
The habitat would get overpopulated because the mice woudl eat too much.
50.
Which describes a decomposer?
a)
an organism that eats only plants
b)
an organism that makes its own food
c)
an organism that breaks down dead matter
d)
an organism that recieves energy from the sun
51.
If the population of prey increases, the population of predators will ________because of the availability of food.
a)
decrease
b)
stay the same
c)
increase
52.
What are interconnected food chains called?
a)
consumers
b)
predators
c)
food web
53.
What would most likely happen if an ecosystem no longer received sunlight?
a)
The number of herbivores would increase
b)
The number of plants would increase
c)
all organisms would adapt
d)
All living organisms would eventually die
54.
All food chains_____________________
a)
have more consumers than producers
b)
produce and use same amount of energy
c)
begin with a producer
d)
are unhealthy
55.
How does energy enter an ecosystem?
a)
sunlight
b)
soil
c)
animals
d)
invasive species
56.
A lion, captures and eats other animals. What is he considered?
a)
prey
b)
predator
c)
producer
d)
healthy
57.
All the members of one species that live within an area of an ecosystem
a)
population
b)
community
c)
niche
58.
In a food web, arrows point at:
a)
who gets energy.
b)
who gets eaten.
59.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a ecosystem.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms.
d)
How carnivores get their food.
60.
If the grasshopper were to be removed completely from the food web, what organism would be most effected?
a)
The squirrel
b)
The shrew
c)
The deer
d)
The rabbit
61.
Which is a producer?
a)
deer
b)
tall grass
c)
lion
d)
worm
62.
Which level will contain plants?
a)
A
b)
B
c)
C
d)
D
63.
Which level has the most energy available?
a)
producer
b)
primary consumer
c)
secondary consumer
d)
tertiary consumer
64.
All energy on Earth ultimately comes from what source?
a)
Water
b)
Sun
c)
Consumers
d)
Oxygen
65.
Why might an organism have more than one arrow coming from them in a food web?
a)
More than one organism may eat them.
b)
They may eat more than one other organism.
c)
This organism gets its energy from multiple sources.
d)
They have no resources available to them.
66.
A place where an organism gets everything it needs to survive.
a)
habitat
b)
community
c)
ecosystem
d)
population
67.
Snow, sleet, hail, and rain are all examples of ________________.
a)
evaporation
b)
condensation
c)
accumulation
d)
precipitation
68.
What is it called when WATER is FORMED from an LIQUID to a WATER VAPOR Oor an [GAS]?
a)
EVAPORATION
b)
PRECIPITATION
c)
TRANSPIRATION
69.
What is it called when plants give off water vapor as a waste product?
a)
condensation
b)
evaporation
c)
sublimation
d)
transpiration
70.
What is the energy source for the water cycle?
a)
the sun
b)
the earth
c)
water
d)
the moon
71.
What part of the water cycle does this picture show?
a)
condensation
b)
precipitation
c)
evaporation
72.
What follows evaporation during the water cycle? How does this occur?
a)
Water evaporates into water vapor
b)
Water vapor condenses and forms a cloud
c)
Water precipitates to the ground
d)
Water runs down into the hydrosphere
73.
What is D?
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Runoff
74.
What is water that flows in rivers and streams into the oceans and lakes?
a)
evaporating
b)
condensing
c)
precipitating
d)
runoff
75.
Which one of these does not add CO2 to the atmosphere?
a)
cooking with gas
b)
planting trees
c)
burning wood
d)
riding in a bus
76.
Combustion is another word for _______________.
a)
a train
b)
a bus
c)
a dog
d)
burning
77.
What does not produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
78.
In the carbon cycle, producers take in the gas __
a)
carbon dioxide
b)
oxygen
c)
nitrogen
d)
carbon monoxide
79.
All of the carbon in existence is continually recycled in the carbon cycle
a)
True
b)
False
80.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death
81.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
82.
If the plant population decreased, the amount of carbon would _________.
a)
Stay the same
b)
Increase
c)
Decrease
83.
Carbon can be found in...?
a)
The atmosphere
b)
Inside of the Earth
c)
Fossil fuels
d)
All of the above!
84.
Carbon dioxide is produced by the burning of fossil fuels
a)
True
b)
False
85.
Which of the following is NOT a carbon sink?
a)
Atmosphere
b)
Soil
c)
Coal stored in Earth's Crust (Fossil Fuels
d)
Decomposition
86.
Which forest carbon process moves carbon from the biosphere to the atmosphere?
a)
Ingestion
b)
Combustion/Burning
c)
Respiration
d)
Both respiration and combustion
87.
Which process moves carbon from above-ground food webs to the food web in the soil?
a)
Respiration
b)
Photosynthesis
c)
Ingestion(eating)
d)
Death and Decomposition
88.
What number represents combustion in this diagram?
a)
1
b)
2
c)
3
d)
4
89.
What number would represent photosynthesis in this
diagram?
diagram?
a)
1
b)
2
c)
3
d)
4
90.
Which is NOT a process that is part of the carbon cycle?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Transpiration
91.
Which one is the BEST definition of the word adaptation?
a)
a behavior that helps a living thing survive
b)
body part or behavior that helps a living thing survive
c)
a body part that helps a living thing survive
d)
a feature that helps a plant survive
92.
An animal's color or pattern that helps it blend into its surroundings
a)
Environment
b)
Mimicry
c)
Camouflage
93.
Which of these BEST describes how some birds survive when the weather gets cold?
a)
a. They store twigs and sticks in their nest
b)
b. They migrate to a warmer climate
c)
c. They grow more feathers to stay warm in the winter
d)
d. They hide in bushes and wait for warm weather
94.
Some animals move great distances as the seasons change. What is this called?
a)
hibernation
b)
migration
c)
habitat
d)
coloration
95.
An example of a physical adaptation is...
a)
a turtle hiding inside its shell
b)
The spikes on a porcupine fish
c)
a rabbit burrowing underground
d)
a viper biting when threatened
96.
How do adaptations help animals?
a)
To hide from predators
b)
to hunt for food
c)
to survive in their habitats
d)
All of these are correct
97.
A squid will squirt black ink at predators when frightened.
a)
Behavioral Adaptation
b)
Structural Adaptation
98.
Which feature of a rose helps it grow without being eaten by large animals?
a)
flowers with bright colors
b)
sharp thorns
c)
small seeds
d)
deep roots
99.
A penguin is white on its belly and black on its back so it harder to see underwater from above and below.
a)
Behavioral Adaptation
b)
Structural Adaptation
100.
When threatened, some animals make warning sounds to help other animals escape a predator.
a)
Behavioral Adaptation
b)
Structural Adaptation
101.
A nice smell is an adaptation that __________________.
a)
helps the plant keep water inside the leaves.
b)
pokes animals that try to eat the plant.
c)
attracts pollinators to the plant.
102.
A body part or behavior that helps a living thing survive in its environment is an ____________.
a)
thorns
b)
waxy covering
c)
leaves
d)
adaptation
103.
When a living thing copies the appearance of another living thing as a means of protection
a)
mimicry
b)
a behavioral adaptation
c)
mockery
d)
natural selection
104.
__________ is when one kind of living thing tries to look or sound like another living thing.
a)
adaptation
b)
instinct
c)
mimicry
d)
camouflage
105.
Cactus have a thick waxy coating on their stem that keeps them from drying out- is this a behavioral adaptation or physical adaptation?
a)
Behavioral adaptation
b)
Physical adaptation
106.
Venus flytraps have two leaves to trap bugs - is this a behavioral adaptation or a physical adaptation?
a)
Behavioral adaptation
b)
Physical adaptation
107.
The Tickle Me Plant folds its leaves in when touched - is this a behavioral adaptation or physical adaptation?
a)
Behavioral adaptation
b)
Physical adaptation
108.
Which adaptation is an example of a physical adaptation?
a)
Knowing when to migrate
b)
Having white feathers
c)
Staying away from predators
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