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WorksheetsUnit 1, 2, 3 exam
Total questions: 40
Worksheet time: 20mins
A collection of cells with similar functions form ____
an organ
an organism
a tissue
an organ system
The function of the roots is:
Absorb minerals and water from the soil and anchor the plant
Anchor the plant and absorb sucrose and minerals from the soil
What is the body system that sends and receives electrical signals from the brain?
Skeletal System
Muscular System
Nervous System
Digestive System
What system breaks food down into energy for the body?
Stomach
Respiratory system
Digestive System
Lungs
What is the job of the ribs in your body?
Ribs don't do anything.
Ribs help you breathe.
Ribs protect your organs.
What tissue connects muscles to bones?
tissue paper
joints
tendons
ligaments
What do you call the part where bones meet?
Bones
Joint
Muscle
the elbows, knees and phalanges are examples of this type of joint
ball and socket
hinge
condyloid
What muscle is highlighted in the picture?
Triceps
Biceps
Deltoids
Muscles always work in _____
pairs
bones
joints
Living organisms have a set of seven characteristics - growth, movement, reproduction, excretion, sensitivity, nutrition and respiration.
true
false
Mold helps dead things (plants, animals)...
Grow
Sleep
Reproduce
Decay
bacteria
simple, single-celled organisms with no nucleus; some are helpful, some are harmful
tiny bits of living material that are smaller than bacteria; can only survive inside the cells of other living things; always harmful
Yogurt contains harmful bacteria.
true
false
Yeast is used for making bread. the yeast respires, producing carbon dioxide gas that makes the bread dough rise.
true
false
Antibiotics kill viruses
true
false
Which vector could lead to a malaria epidemic?
mosquitoes
flies
bats
This type of cell needs a cell wall and chloroplasts
Animal Cell
Plant Cell
Plants and animal cells both have a nucleus.
true
false
This specialised cell does not contain a nucleus to allow for transport of oxygen
Nerve Cell
Red Blood Cell
White Blood Cell
A tissue is a group of similar cells, carrying out a particular function.
true
false
What is it called when an organism changes color to blend in with their environment?
Camoflauge
Adaptation
Fashion
Deserts are hot and dry so an example of a plant adaptation here is...
long and deep root systems to absorb ground water
dark in color to absorb sunlight
grow on each other to protect from wind
The way energy is passed from one organism to another
food chain
energy
habitat
Examples of a producer
frog
worm
algae
mouse
What is a producer?
an organism that gets energy from eating other organisms
an organism that gets energy from eating dead organisms, non-living material or waste
an organisms that uses sunlight to make its own food
an organism that uses chemical energy to make its own food
An organism that gets energy from eating other organisms is a ______________
producer
decomposer
consumer
prey
What are examples of human activities and food chains?
fishing
introducing new species
all of the above
What causes acid rain?
High concentrations of sulfuric or nitric acid from pollution
CFCs
Fertilizer use
Pollution means adding harmful things to the environment.
true
false
The ozone destroying pollutants primarily comes from air conditioner coolants, refrigerator coolant, aerosol spray, and plastic foam.
true
false
What absorbs ultraviolet rays in the atmosphere?
troposphere
ozone layer
stratosphere
Location of the large whole in the ozone.
Africa
Artic
Antarctica
Iceland
nonrenewable resources
oil , natural gases , and coal
food , clothes , water
wind, plants and sun
when trash breaks down in a landfill it produce what kind of gas
liquid gas
methane
carbon dioxide
oxygen
Conservation means looking after the environment so that animals and plants can live there.
true
false
What is a non renewable resource?
water
wind
biomass
coal
A non-renewable energy resource is one that we are using up faster than it is being formed. it will eventually run out.
true
false
Source of energy from plant materials and animal waste.
Solar
Biomass
Wind
Hydropower
It is a renewable source of energy.
natural gas
coal
wind
