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WorksheetsPage 1
Total questions: 140
Worksheet time: 1hrs 10mins
Which characteristic of living things describes animals walking and plants turning toward light?
Nutrition from external food sources
Sensitivity to heat and pressure
Growth of tissues and organs
Movement of body parts and organs
Reproduction of new individuals
Pulling your hand away from a hot surface is an example of which characteristic?
Sensitivity to environmental changes
Respiration releasing energy
Reproduction producing offspring
Excretion of waste materials
Nutrition from consumed foods
Living things producing young or new plants best describes which characteristic?
Reproduction creating new life
Movement changing position
Growth increasing size and mass
Respiration releasing stored energy
Excretion removing waste products
Which characteristic explains why living things need food to get energy and stay healthy?
Movement changing physical location
Respiration using oxygen for energy
Sensitivity responding to stimuli
Excretion removing harmful wastes
Nutrition obtaining and using food
Breathing or releasing energy from food is part of which life process?
Reproduction of offspring
Growth and development
Movement between habitats
Respiration and gas exchange
Excretion of wastes
Living things grow and develop because they take in nutrients and energy from the environment. Which characteristic is this?
Growth increasing size over time
Movement of body structures
Sensitivity to external stimuli
Nutrition eating various foods
Reproduction making new individuals
Removing waste products from the body refers to which characteristic?
Excretion of unused materials
Respiration using stored energy
Sensitivity to loud noises
Nutrition from carbohydrate foods
Reproduction during life cycles
The acronym MRS GREN helps you remember the seven characteristics of living things. Which option lists them correctly?
Move, Breathe, Feel, Grow, Make babies, Waste, Eat
Motion, Respiring, Stimuli, Gain, Reproduce, Expel, Nutrients
Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, Nutrition
Mobility, Oxygen use, Awareness, Increase, Multiply, Discard, Diet
Movement, Respiration, Sensing, Growing, Replication, Excretion, Nourishment
Which statement shows a misconception about respiration in living things?
Respiration releases energy from food
Respiration occurs in cells and tissues
Respiration is essential for survival
Respiration enables growth and development
Respiration means only breathing in air
A plant bending toward sunlight demonstrates two characteristics at once. Which pair is correct?
Nutrition and excretion occurring together
Respiration and reproduction combined
Growth and reproduction happening together
Growth and excretion acting together
Movement and sensitivity working together
If an organism cannot remove waste from its body, what life process is failing?
Nutrition because food is not digested
Excretion because wastes accumulate
Movement because muscles are weak
Sensitivity because stimuli are ignored
Growth because cells stop dividing
Which example best fits reproduction in living things?
A starfish regenerating a limb
A fish swimming to deeper waters
A mushroom releasing carbon dioxide
A lizard basking to warm its body
A plant forming seeds after flowering
Which statement best describes movement in living things shown in the image?
Non-living things always move themselves
Living things need machines to move
Only plants can move toward sunlight
Animals move on their own without help
A sunflower turning to face the sun is an example of what?
Plant growth without movement
Plant movement toward light
Animal movement using legs
Non-living object rotation
Which option shows movement by animals?
Roots absorbing water
Photosynthesis in leaves
Seeds dispersing by wind
Walking to find food
What makes movement a sign of being alive?
It requires an external motor
It happens only at night
It occurs by the organism itself
It is limited to mammals only
Plants moving toward light is mainly due to what stimulus?
Gravity pulling upward
Sound from animals
Heat from soil
Light reaching leaves
Which statement is false about movement of living things?
Only animals can move themselves
Living things show self-driven movement
Plants can turn toward light
Animals can walk on their own
A houseplant bending toward a window demonstrates which process?
Evaporation from leaves
Respiration in roots
Chemosynthesis reaction
Phototropism in plants
Which example does NOT represent living movement?
A vine curling on a pole
A cat walking to water
A seedling bending to sunlight
A rock sliding down hill
Why is plant movement less obvious than animal movement?
It requires loud sound waves
It is usually slower over time
It stops during daylight hours
It happens only underground
Which phrase best completes: Living things can move by themselves, meaning...
Their bodies respond to stimuli
Machines push them to move
They never change position
Only plants show this feature
Which statement best describes respiration in living things?
Only breathing air into the lungs
Moving oxygen through the bloodstream
Breathing or releasing energy from food
Only digesting food into nutrients
Why is respiration essential for organisms?
It sustains life by providing usable energy
It helps organisms see in the dark
It only cools the body during heat
It stores energy without using it
Respiration primarily enables which two long-term processes?
Growth and development in organisms
Evaporation and condensation
Photosynthesis and transpiration
Erosion and deposition
In respiration, what is the main source from which energy is released?
Water absorbed by roots
Sunlight hitting the skin
Food consumed by organisms
Minerals stored in bones
Which misconception about respiration is FALSE?
It only means breathing air in and out
It involves releasing energy from food
It is essential for sustaining life
It supports growth and development
A key outcome of respiration is energy for cells. What do cells use this energy for?
Carrying out life processes
Producing only body heat
Storing unused sugars forever
Making bones heavier
Which process would most directly slow down if respiration stopped?
Cloud formation in the atmosphere
Cellular activities that require energy
Ocean tides caused by the Moon
Rock weathering on mountains
What does the image of a face exhaling most likely symbolize in this context?
The flow of electricity
The process of digestion
The concept of respiration
The act of photosynthesis
Energy released during respiration is MOST directly needed for which example?
Wind blowing across a field
Rocks breaking into sand
Cells dividing during growth
Rain falling from clouds
Which statement matches the role of respiration in living things?
It replaces nutrients with gases
It enables life by providing energy
It builds energy without using it
It removes water from tissues
What does sensitivity mean for living things?
Maintaining a constant internal temperature
Detecting and responding to environmental changes
Growing larger over many years
Producing offspring during a lifetime
Which is the best example of sensitivity?
Pulling your hand away from a hot surface
Eating a meal at lunchtime
Growing taller during adolescence
Sleeping through the entire night
A plant bending toward sunlight demonstrates what process?
Sensitivity to a stimulus
Reproduction of seeds
Excretion of wastes
Digestion of nutrients
Why do you blink when dust blows into your eyes?
It is a sensitivity response to irritation
It is a growth process over time
It is a way to reproduce new cells
It is a method of obtaining energy
Which situation shows poor sensitivity?
Not noticing a cold wind on your face
Turning down music when it is loud
Moving away from a stinging insect
Covering skin when the sun is intense
In science, what is a stimulus?
A structure that supports the organism
A waste product removed from the body
Food that organisms use for energy
A change in the environment that causes a response
Which response is most likely caused by heat as the stimulus?
Yawning after a long school day
Sneezing during spring allergies
Shivering on a winter morning
Pulling back from a hot pan quickly
A deer hearing a twig snap and running away illustrates what?
Sensitivity to sound as a stimulus
Homeostasis of body fluids
Growth of muscles over time
Reproduction during mating season
If an organism cannot sense changes around it, what might happen?
It will reproduce more frequently
It will immediately grow much faster
It may fail to avoid harmful conditions
It will stop using any energy
Which statement correctly connects stimulus and response?
Cold air causes sweat glands to activate
Soft sounds cause ears to stop working
Lack of food causes plants to flower
Bright light causes pupils to become smaller
Which process is described as living things removing waste products from their bodies?
Respiration in cells releases energy
Nutrition provides materials for growth
Reproduction creates offspring for species
Excretion eliminates body waste products
Why is excretion necessary for living organisms?
It increases body temperature
It prevents toxic waste buildup
It stores extra nutrients safely
It stops oxygen from diffusing
Which example best illustrates excretion?
Red blood cells carrying oxygen
Stomach digesting complex proteins
Lungs absorbing carbon dioxide
Sweat glands releasing salty fluid
What waste do kidneys primarily remove from the blood to maintain balance?
Glucose and amino acids
Urea and excess water
Antibodies and hormones
Carbon dioxide gas molecules
Which body system is most directly responsible for excreting liquid urine?
Circulatory system of vessels
Respiratory system of lungs
Urinary system of kidneys
Digestive system of intestines
Which statement correctly compares excretion and digestion?
Excretion converts food to energy
Digestion removes nitrogenous wastes
Both remove metabolic wastes
Both break down food molecules
During exercise, why does sweating help maintain homeostasis?
It decreases blood sugar concentration
It stores electrolytes in tissues
It cools the body and removes salts
It increases carbon dioxide levels
Which waste product is excreted mainly by the lungs?
Bile pigments from hemoglobin
Ammonia from bacterial action
Carbon dioxide from respiration
Urea from protein breakdown
What would most likely happen if an organism could not excrete wastes effectively?
Toxins would accumulate internally
Its DNA would change immediately
Its cells would stop dividing
Its bones would dissolve rapidly
Which structure filters blood to form urine as part of excretion?
Osteons in the bones
Alveoli in the lungs
Nephrons in the kidneys
Villi in the intestines
What is the main reason living things need food?
To get energy and stay healthy
To communicate with others
To grow taller quickly
To change color seasonally
Which statement best describes nutrition for living things?
Nutrition is only about taste preferences
Nutrition means food gives energy and health
Nutrition is the process of breathing air
Nutrition is how muscles contract during exercise
Why would a plant be considered to have nutrition needs?
It drinks water to speak to animals
It breathes carbon dioxide to make sounds
It uses food to get energy and stay healthy
It eats soil to build leaves
If an animal does not get proper food, what is most likely to happen?
It gains unlimited energy instantly
It may lack energy and become unhealthy
It changes species overnight
It stops needing water forever
Which option shows an effect of nutrition?
Food makes gravity stronger
Food creates light inside rooms
Food turns rocks into plants
Food provides energy for activities
What does the word 'nutrition' refer to in science?
How living things obtain and use food
How planets orbit around stars
How magnets attract metal objects
How weather changes during seasons
A student feels tired and often sick. Which nutrition explanation fits best?
They are drinking too much water
They have too much stored energy
They may not be getting healthy food
They are breathing too much oxygen
Which statement is consistent with the nutrition icon (cup and fork)?
Food only changes taste buds
Food helps provide energy and health
Food is unrelated to health
Food only affects hair length
What do all living things share about food needs?
Only young ones need food daily
All need food for energy and health
Only predators require daily meals
Only plants need food at night
Which choice shows a correct cause-and-effect about nutrition?
Spicy food increases gravitational pull
Extra food removes the need for sleep
Healthy food supports energy and wellness
No food leads to infinite energy
Which statement best explains why living things grow and develop?
Growth depends solely on genetic code
Growth happens without energy input
Growth occurs only during reproduction
Growth is driven by nutrients and energy
What role do nutrients play in the growth of living organisms?
They provide energy and building materials
They remove waste from cells
They control external temperatures
They stop cell division and metabolism
A plant increases in height and leaf number over time. What most directly enables this change?
Sunlight and absorbed nutrients
Only internal body heat
Exposure to strong winds
Lack of water and minerals
Which process is closely linked with growth in living organisms?
Immediate aging without development
Stopping metabolism entirely
Permanent loss of nutrients
Energy intake from environment
A student says organisms can develop without taking in energy. What is the best response?
Development happens only at night
Development requires environmental energy
Development never occurs in animals
Development is unrelated to nutrients
Which example shows growth driven by environmental resources?
A rock increasing size during rain
A seed sprouting after absorbing water
A shadow becoming longer at sunset
A metal rod stretching under heat
Why do living things need to take in materials from their surroundings?
To avoid any chemical reactions
To fuel growth and development
To prevent energy from being used
To stop cells from dividing
An animal grows after eating a balanced diet. What does the diet supply?
Heat alone without chemicals
Only water with no minerals
Energy and nutrients for cells
Wind and light as food
Which observation best indicates a living thing is growing?
Increase in size and complexity
Loss of nutrients during feeding
Constant energy output without input
No change in mass for years
Which statement best defines reproduction in living things?
Moving from one place to another quickly
Exchanging gases like oxygen and carbon dioxide
Breaking down food into simpler parts
Producing young ones or new plants
A sunflower forms seeds that grow into new sunflowers. What biological process does this show?
Photosynthesis in leaves
Excretion of waste
Reproduction of the plant
Respiration of the plant
Why is reproduction important for a species?
It allows faster movement and hunting
It reduces the need for sunlight
It helps individuals digest meals
It ensures survival across generations
Which is an example of reproduction in animals?
A bird hatches chicks from eggs
A cat breathes in oxygen
A fish swims upstream fast
A dog releases liquid waste
Which scenario is NOT reproduction?
Leaves making sugar in sunlight
Seeds sprouting into new plants
Bacteria dividing into two cells
Frogs laying eggs in ponds
Bacteria can make more bacteria by splitting into two. What is this process called?
Reproduction by cell division
Respiration by mitochondria
Circulation by diffusion
Nutrition by absorption
Which statement matches the concept shown on the slide?
Living things never change size
Living things do not need energy
Living things can produce offspring
Living things must stay motionless
Seeds growing into new plants demonstrate which life function?
Regulation of temperature
Circulation of fluids
Respiration in tissues
Reproduction of organisms
In most species, what is a direct outcome of reproduction?
Reduction of body temperature
Immediate food production
Permanent stop to aging
Increase in population size
Which choice describes reproduction most accurately for grade 7 science?
Breaking food for cellular energy
Making new individuals of the same kind
Removing wastes from the body
Transporting substances through blood
Which statement best describes how a virus is considered living?
It is living only on surfaces
It acts living only inside cells
It is never living anywhere
It is fully living everywhere
What do viruses do when inside a host cell?
Make more viruses and mutate
Stop using any energy
Grow their own cells and tissues
Become completely inactive
Which feature do viruses lack outside a living cell?
Complex organ systems
Ability to photosynthesize
Independent cell structure
Visible movement on surfaces
Why can viruses affect the balance of nature?
They turn non-living matter alive
They form multicellular bodies
They create new ecosystems alone
They interact with living organisms
Outside a host, which process can viruses NOT perform?
Copy themselves independently
Absorb sunlight for energy
Digest food for nutrients
Breathe oxygen like animals
Which reason explains scientific debate about viruses’ status?
They are all identical in form
They were discovered recently
They are larger than bacteria
They show mixed living behaviors
What enables viruses to survive and spread inside hosts?
Having their own nuclei
Changes through mutation
Performing photosynthesis
Producing specialized organs
Which statement about virus energy use is correct?
They use energy only inside hosts
They use energy in open air
They never use any energy
They generate energy like plants
Where can a virus act like a living thing?
Inside a living cell
On non-living surfaces
Inside rock formations
In pure water alone
What is one non-living characteristic of viruses?
They have complete cellular structures
They can photosynthesize for energy
They can reproduce without any host
They cannot carry out life processes alone
Which statement best describes viruses?
Tiny germs that can make living things sick
Small cells that help plants grow stronger
Large organisms visible with the naked eye
Harmless particles that clean the environment
Viruses can make which groups sick?
Only people get sick from viruses
People, animals, and plants can get sick
Only plants are affected by viruses
Only animals are affected by viruses
How do viruses compare in size to bacteria?
Bacteria are smaller than most viruses
Viruses and bacteria are the same size
Viruses are much larger than bacteria
Viruses are much smaller than bacteria
Why can’t we see viruses with the naked eye?
They only exist during winter months
They are too tiny to be seen directly
They hide inside animal cells only
They reflect no visible light waves
What is a realistic reason viruses are described as germs?
They provide nutrients to organisms
They act as protective body cells
They can cause disease in living things
They form tissues in plant leaves
Which statement about visibility is true for viruses?
They require microscopes to be observed
They can be seen with unaided eyes
They glow brightly in sunlight
They are visible only at night
Which comparison best matches the material?
Bacteria are smaller than viruses
Viruses and fungi are the same size
Viruses are smaller than bacteria
Fungi are smaller than viruses
What do viruses primarily do to living organisms?
Convert them into bacteria cells
Help them grow faster and taller
Make them sick by causing illness
Provide them with clean energy
Which phrase best completes: Viruses are very tiny _____?
rocks found in the soil
germs that cause sickness
plants that produce food
cells that carry oxygen
Which tool would be most suitable for seeing viruses?
Binoculars used outdoors
Unaided human eyesight alone
A regular magnifying glass
A microscope with high magnification
Which virus is most commonly linked to cold and sneezing symptoms?
Chickenpox virus causing itchy spots
Influenza virus causing body aches
Common cold virus causing sneezing
Measles virus causing skin rashes
Which illness is primarily associated with fever and body pain?
Common cold causing nasal congestion
Influenza causing fever and aches
Measles causing blotchy rashes
Chickenpox causing itchy blisters
A student has breathing problems and cough. Which virus from the list is most likely involved?
Common cold virus causing sneezes
Coronavirus causing breathing issues
Measles virus causing rashes
Chickenpox virus causing itchy spots
Which virus is known for causing itchy spots on the skin?
Coronavirus causing chest tightness
Measles virus causing feverish rashes
Chickenpox virus causing itchy lesions
Influenza virus causing muscle pains
Which pair correctly matches the virus to its typical symptom?
Measles — itchy fluid-filled spots
Common cold — rashes and fever
Influenza — fever and body pain
Coronavirus — sneezing and runny nose
Which statement best distinguishes measles from chickenpox?
Chickenpox causes severe body aches
Measles causes breathing problems
Chickenpox causes dry cough only
Measles causes rashes with fever
What symptom is least characteristic of the common cold compared to the other listed illnesses?
High fever with body pains
Breathing difficulty or chest pain
Itchy blister-like spots
Sneezing and mild congestion
Which virus from the list became widely known during the COVID-19 pandemic?
Chickenpox virus causing itchiness
Measles virus causing rashes
Coronavirus causing breathing issues
Influenza virus causing aches
A patient presents with fever and a blotchy rash. Which virus is the most likely cause?
Chickenpox virus causing itchy spots
Influenza virus causing body pains
Measles virus causing rash and fever
Common cold virus causing sneezing
Which symptom set best matches the common cold?
Cold symptoms with frequent sneezing
Fever and severe body aches
Itchy fluid-filled skin spots
Breathing difficulty and chest pain
Which virus is known for damaging plant leaves by creating mosaic-like patterns?
Potato leaf curl virus damages tuber tissues
Banana bunchy top virus damages banana plants
Rice blast fungus damages leaf surfaces
Tobacco mosaic virus damages plant leaves
A farmer sees banana plants with stunted, crowded leaves. Which virus is most likely responsible?
Cucumber mosaic virus harms gourds
Tobacco mosaic virus harms plant leaves
Banana bunchy top virus affects banana plants
Tomato spotted wilt harms tomato fruit
What is the primary target of the tobacco mosaic virus in plants?
Flower pollen grains
Root nodules in legumes
Plant leaves and their tissues
Banana fruit bunches
Which statement best matches the name with the correct host plant?
Tobacco mosaic virus mainly attacks plant roots
Banana bunchy top virus mainly attacks plant stems
Banana bunchy top virus mainly attacks banana plants
Tobacco mosaic virus mainly attacks banana plants
If a plant’s leaves show a mottled mosaic pattern, which control measure is MOST relevant?
Apply extra phosphorus to the soil
Hand-pollinate to improve fruit set
Use resistant varieties against mosaic viruses
Remove infected banana clumps promptly
Banana fields show bunchy, upright leaves with stunting. Which action should be prioritized?
Increase nitrogen fertilizer immediately
Destroy infected banana suckers quickly
Add mulch to conserve soil moisture
Spray copper to prevent leaf spots
Which symptom is most consistent with tobacco mosaic virus infection?
Striped mosaic patterns on leaves
Soft rot of roots and stems
Circular bacterial spots on leaves
Powdery white growth on leaves
Why is banana bunchy top virus named that way?
It causes leaves to bunch at the top
It produces mosaic patterns on leaves
It infects only the plant roots
It enlarges the banana fruit bunch
Which pair correctly connects pathogen and effect?
Banana bunchy top virus—infects tobacco leaves
Tobacco mosaic virus—damages plant leaves
Tobacco mosaic virus—affects banana plants
Banana bunchy top virus—damages plant leaves
A plant pathologist is surveying crops for viral diseases. Which observation suggests banana bunchy top virus rather than tobacco mosaic virus?
Patchy necrosis on tomato leaves
Yellowing veins on tobacco leaves
Leaf bunching and stunting in bananas
Mottled leaf mosaic on many species
Which animals are primarily affected by the rabies virus as shown in the diagram?
Cats and horses
Sheep and pigs
Cows and goats
Dogs and humans
Which virus mainly affects cows and goats according to the visual?
West Nile virus
Foot-and-mouth disease virus
Rabies virus
Influenza A virus
A farmer’s goats show mouth blisters and lameness. Which virus is most likely involved?
Foot-and-mouth disease virus
Rabies virus
Rotavirus
Measles virus
A vet treats a dog after a suspicious animal bite. Which virus is the main concern?
Yellow fever virus
Norovirus
Rabies virus
Foot-and-mouth disease virus
Which statement best matches the animal hosts listed for the two viruses?
Rabies: only dogs; FMD: only goats
Rabies: only humans; FMD: only cows
Rabies: cows and goats; FMD: dogs and humans
Rabies: dogs and humans; FMD: cows and goats
What do rabies virus and foot-and-mouth disease virus have in common in this context?
They are non-infectious disorders
They only infect plants
They are bacterial diseases
They infect animals
Which pair correctly links a virus to one of its typical hosts?
Influenza virus — tree
HIV — horse
Rabies virus — goat
Foot-and-mouth disease virus — cow
Which virus listed is a zoonotic risk to humans in the scenario shown?
Bacteriophage
Plant mosaic virus
Foot-and-mouth disease virus
Rabies virus
Which outcome would most likely follow vaccination programs in dogs based on the slide?
Reduced rabies cases
Increase in bacterial diseases
Elimination of foot-and-mouth
More plant infections
Which animals are not listed as hosts for foot-and-mouth disease virus in the diagram?
Cattle and caprines
Livestock like cows
Cows and goats
Dogs and humans
Which reason explains why classifying viruses as living can help scientists manage populations in nature?
It clarifies their role in controlling hosts
It proves viruses photosynthesize energy
It confirms viruses are visible without microscopes
It shows viruses breathe like mammals
How do viruses contribute to keeping ecosystems healthy?
By balancing species through infections
By creating soil through rock weathering
By producing oxygen during daytime
By eliminating all predators permanently
What ecological process is supported by viruses according to the diagram?
Formation of mountains and valleys
Recycling of nutrients in food webs
Growth of crystals in caves
Generation of electricity in storms
Why might recognizing viruses as living inform public health measures?
It guides strategies for transmission control
It ensures laws about telescope safety
It improves recipes for laboratory snacks
It determines colors used in hospital paint
If a virus reduces a booming algae population, what ecosystem effect could follow?
Complete stoppage of water cycling globally
Permanent removal of sunlight from the lake
Instant creation of new predator species
Improved balance among aquatic organisms
Which option describes nutrient recycling aided by viral activity?
Breaking down cells returns elements to cycles
Nutrients vanish from ecosystems forever
Viruses convert light directly into metals
Living things stop decomposing entirely
Public health planning benefits from viewing viruses as living because it emphasizes what?
Lifecycle patterns affecting spread
Decorative uses of virus shapes
Taste of viruses in different foods
Ability to power household appliances
Which choice shows a misconception about how viruses keep ecosystems healthy?
They contribute to nutrient turnover
They interact within food webs and cycles
They influence populations through infections
They always eliminate every host entirely
In a food web, how might viruses indirectly affect nutrient flow?
By stopping bacteria from decomposing
By turning minerals into pure energy units
By making plants photosynthesize at night
By causing cell lysis that releases materials
