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Worksheets7th Grade iKNOW Challenge
Total questions: 60
Worksheet time: 2hrs 42mins
Name
Class
Date
1.
what organelle controls the cell.
a)
Lysosome
b)
Nucleus
c)
Nucleolus
d)
Chromosomes
2.
How many parents is needed for asexual reproduction?
a)
0
b)
3
c)
2
d)
1
3.
The basic unit of all living things is ______
a)
cells
b)
Protien
c)
oxegen
d)
bones
4.
Each different kind of life is a __________________
a)
cell
b)
species
c)
thing
d)
none of the above
5.
What is the job of a lysosome in the cell?
a)
Clean up
b)
control the cell
c)
make ribosomes
d)
It's just there
6.
What is the job of mitochondria in a cell.
a)
make ribosomes
b)
control the cell
c)
produce energy
d)
make protien
7.
what is the job of chloroplasts in the cell
a)
produce protien
b)
catch sunlight and turn it into energy
c)
nothing
d)
clean up
8.
The diffusion of water through a selectively permeable membrane is called
a)
Diffusion
b)
Passive Transport
c)
Active Transport
d)
Osmosis
9.
The movement of molecules from a higher concentration to a lower concentration is called
a)
Diffusion
b)
Passive Transport
c)
Active Transport
d)
Osmosis
10.
Takes place in the chloroplast
a)
Cellular Respiration
b)
Photosynthesis
11.
Does not require light
a)
Cellular Respiration
b)
Photosynthesis
12.
Food is broken down during
a)
Cellular Respiration
b)
Photosynthesis
13.
Oxygen is given off
a)
Cellular Respiration
b)
Photosynthesis
14.
What produced during photosynthesis?
a)
Glucose
b)
ATP
c)
ADP
d)
CO2
15.
All of the following have a nucleus except...
a)
Bacteria
b)
Animalia
c)
Plantae
d)
Protista
16.
Which of the following is the key difference between kingdom Protista and Bacteria?
a)
Unicellular
b)
Autotrophic and Heterotrophic
c)
Asexual
d)
Protista has a nucleus
17.
Which kingdom is Autotrophic, Eukaryotic and reproduces sexually?
a)
Bacteria
b)
Fungi
c)
Plantae
d)
Protista
18.
How many kingdoms are there?
a)
2
b)
4
c)
6
d)
8
19.
Examples are mushrooms and yeast
a)
Fungi
b)
Protista
Protista
Protista
c)
Plantae
d)
Animalia
20.
What type of cell is this?
a)
Plant
b)
Fungus
c)
Animal
d)
Monera
21.
What levels of classification are used in the scientific name?
a)
Kingdom, Phylum
b)
Kingdom, Species
c)
Genus Species
d)
Phylum, Genus
22.
Archeabacteria...
a)
are eukaryotic
b)
live in extreme environments
c)
are non-living
d)
live in the soil
23.
Which of the following organisms are MOST closely related?
a)
organisms that share a domain
b)
organisms that share a family
c)
organisms that share a genus
d)
organisms that share a species
24.
What is the genotype for a male?
a)
XX
b)
XY
c)
XXY
d)
XXX
25.
An individual's collection of genes
a)
genotype
b)
phenotype
c)
punnett square
d)
mitosis
26.
From the table, which two animals are MOST CLOSELY related
a)
House Cate and Red Fox
b)
Red Fox and Dog
c)
Dog and Wolf
d)
Wolf and Gopher
27.
When using a dichotomous key to identify organisms, what do we look at?
a)
physical features
b)
weather patterns
c)
environment
d)
diet
28.
Offsprings are different: not identical to parents.
a)
Sexual
b)
Bipolar
c)
Asexual
d)
Depressed
29.
A __________ includes all living and non-living things in an environment.
a)
population
b)
niche
c)
abitotic
d)
ecosystem
30.
_______ are consumers that eat only meat.
a)
Herbivore
b)
Omnivore
c)
Carnivore
31.
________ are consumers that eat plants and meat.
a)
Herbivore
b)
Omnivore
c)
Carnivore
32.
Which organism make their own food through the process of photosynthesis?
a)
decomposer
b)
consumer
c)
herbivore
d)
producer
33.
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.
34.
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
35.
A lion, captures and eats other animals. What is he considered?
a)
prey
b)
predator
c)
producer
d)
healthy
36.
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
37.
Most ecosystems have many food chains. What are food chains that overlap in an ecosystem and show feeding relationships?
a)
unhealthy
b)
energy pyramid
c)
food web
d)
matter
38.
Where is the most energy held in an energy pyramid?
a)
at the bottom (producers)
b)
middle of the pyramid
c)
there is no energy
d)
at the top (third stage consumers)
39.
The ___________ are the main organs of the respiratory system.
a)
vein
b)
lungs
c)
artery
40.
The _______________________ consists of blood, blood vessels, and the heart.
a)
respiratory system
b)
circulatory system
c)
urinary system
41.
The ______________________ is the body system that breaks food down so that it can be used by the body.
a)
circulatory system
b)
digestive system
c)
respiratory system
42.
The _________________ is the body system that removes liquid wastes from the body.
a)
urinary system
b)
nervous system
c)
circulatory systems
43.
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
44.
Lions often hide in the tall grass while stalking their prey. This is an example of...
a)
camouflage
b)
warning coloration
c)
mimicry
d)
hibernation
45.
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
46.
What is a trait?
a)
plant
b)
an adaptation
c)
a characteristic or feature
47.
The ears of this fox are an example of...
a)
A behavioral adaptation
b)
Poor breeding
c)
A physical adaptation
d)
Plastic surgery gone horribly wrong
48.
What kind of organism comes last in every food chain?
a)
sun
b)
producer
c)
predator
d)
decomposer
49.
Abiotic factors are parts of the environment that are...
a)
Nonliving
b)
Living
c)
Populations
d)
Vegetation
50.
This biome is found around the equator and is home to a large amount of biodiversity.
a)
Deserts
b)
Tropical Rain Forests
c)
Savannas
d)
Chaparral
51.
Areas defined by their geographical location and ecological similarity are called?
a)
ecozones
b)
biotopes
c)
biomes
d)
biodomes
52.
Areas defined by their geographical location and ecological similarity are called?
a)
ecozones
b)
biotopes
c)
biomes
d)
biodomes
53.
The hyenas and lions in The Lion King both want to eat all the antelope. This is...
a)
Cooperation
b)
Competition
c)
photosynthesis
54.
The biome known for trees with broad leaves that fall off the trees in the winter.
a)
Coniferous Forests
b)
Deciduous Forests
c)
Deserts
d)
Tropical Rain Forests
55.
A aquatic biome classified as marine would have...
a)
Fresh Water
b)
Salt Water
c)
Either Fresh Water or Salt Water
d)
Neither Fresh Water or Salt Water
56.
Which biome is MOST LIKE the "desert" in terms of precipitation?
a)
tropical rainforest
b)
temperate deciduous forest
c)
tundra
d)
coniferous forest
57.
This stores our genetic information:
a)
DNA
b)
lipids
c)
ATP
d)
flash drives
58.
Keeping a stable body temperature and stable blood sugars is an example of
a)
homeostasis
b)
metabolism
c)
photosynthesis
d)
respiration
59.
Which of the following alleles is homozygous (purebred) recessive?
a)
Tt
b)
tt
c)
TT
d)
t
60.
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
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