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WorksheetsClassification Systems and Biology Worksheet
Total questions: 97
Worksheet time: 49mins
The main purpose of classification systems is to:
organize and categorize information
create confusion in data
eliminate all errors in data
increase the complexity of information
Who developed the modern Linnaean classification system?
Aristotle
Darwin
Carolus Linnaeus
Mendel
Early humans grouped plants mainly by their _____ and _____.
use, danger
color, size
taste, smell
height, shape
Early humans used scientific names to classify plants.
True
False
Using common names was a problem for scientists because:
they could be confusing and inconsistent
they were always in Latin
they were too scientific
they were only used in one country
The Australian magpie’s scientific name is _____
Cracticus tibicen
Gymnorhina tibicen
Corvus coronoides
Manorina melanocephala
The first person to describe plants and animals in a systematic way was:
Aristotle
Charles Darwin
Gregor Mendel
Isaac Newton
Linnaeus simplified classification to how many main levels?
Three
Five
Seven
Four
Linnaeus gave every organism a long Latin name describing all traits.
True
False
Seven new species of peacock spiders were discovered in Australia in which year?
2017
2010
2020
2013
Fill in the blank: Many modern medicines originally come from _____ sources.
natural
artificial
digital
mechanical
One example of a medicine that came from nature is:
Aspirin
Ibuprofen
Paracetamol
Metformin
The acronym MR N GREWW stands for which of the following?
Movement, Respiration, Nutrition, Growth, Reproduction, Excretion, Water, Waste
Movement, Respiration, Nutrition, Growth, Reproduction, Excretion, Water, Warmth
Movement, Respiration, Nutrition, Growth, Reproduction, Excretion, Wind, Warmth
Movement, Respiration, Nutrition, Growth, Reproduction, Excretion, Wind, Waste
Biology is the study of _____
Living organisms
Rocks
Planets
Machines
Dead organisms were once living.
True
False
The two types of nutrition that describe how organisms get food are:
Autotrophic and heterotrophic nutrition
Photosynthesis and respiration
Carnivorous and herbivorous nutrition
Aerobic and anaerobic nutrition
Fill in the blank: Plants move by turning their leaves toward the _____
light
ground
wind
water
What do animals use to exchange gases?
Skin
Gills
Lungs
All of the above
True or False: Plants do not produce waste.
True
False
Water is important for living things because:
it is essential for survival and various biological processes.
it is not needed by living things.
it is only used for cleaning.
it can be replaced by any other liquid.
One way animals remove wastes from their bodies is through:
excretion
photosynthesis
respiration
digestion
Fill in the blank: Non-living things have never shown the characteristics of _____
life
water
growth
movement
A dichotomous key always splits into how many choices at each step?
Two
Three
Four
One
Scientists use keys to identify the scientific name of an organism.
True
False
The purpose of classification keys is to:
help identify and group organisms based on their characteristics.
provide a list of scientific names for all organisms.
describe the habitat of different species.
explain the evolutionary history of organisms.
Fill in the blank: “Di” in dichotomous means _____?
two
one
many
half
For field studies, which is more practical: a large diagram or a tabular key?
A large diagram
A tabular key
Both are equally practical
Neither is practical
Select the example of a Yes/No question you might find in a dichotomous key.
Does the organism have wings?
What color is the organism?
How many legs does the organism have?
Where does the organism live?
The two parts of a scientific name are:
Genus and species
Family and order
Class and phylum
Kingdom and domain
Linnaeus was the first to use dichotomous keys.
True
False
Fill in the blank: The scientific naming system is called _____ _____.
Binomial Nomenclature
Taxonomic Hierarchy
Genetic Classification
Phylogenetic System
The mnemonic that helps remember the Linnaean order is:
King Philip Came Over For Good Soup
Please Excuse My Dear Aunt Sally
Every Good Boy Deserves Fruit
My Very Educated Mother Just Served Us Noodles
Select the correct order from broad to specific: Class, Species, Kingdom, Family.
Kingdom, Class, Family, Species
Species, Family, Class, Kingdom
Class, Kingdom, Family, Species
Family, Kingdom, Class, Species
The genus name is always _____ and the species name is _____.
capitalised, lowercase
lowercase, capitalised
capitalised, capitalised
lowercase, lowercase
Members of the same species can produce fertile offspring.
True
False
The discovery that led scientists to add the sixth kingdom (Archaea) was:
The identification of organisms with unique genetic and biochemical characteristics distinct from bacteria.
The discovery of multicellular life forms in extreme environments.
The realization that all prokaryotes are closely related to eukaryotes.
The observation that Archaea can perform photosynthesis like plants.
The basic unit that makes up all living things is:
Cell
Atom
Molecule
Tissue
One key question taxonomists use when classifying cells is:
Is the cell prokaryotic or eukaryotic?
What is the color of the cell?
How many chromosomes does the cell have?
Is the cell found in water only?
All animals are heterotrophs.
True
False
Fill in the blank: Plants are _____ that make food from sunlight.
autotrophs
heterotrophs
decomposers
parasites
Mushrooms belong to which kingdom?
Plantae
Fungi
Animalia
Protista
Organisms in Kingdom Monera are missing which of the following that other cells have?
A nucleus
Cell membrane
Cytoplasm
Ribosomes
Bacteria are useful to humans because they:
help in making curd and cheese.
cause diseases like flu.
produce harmful toxins only.
are always harmful to humans.
Kingdom Protista includes which type of organisms?
Unicellular and simple multicellular organisms
Only multicellular plants
Only prokaryotic organisms
Complex animals
What percentage of animals are invertebrates?
About 97%
About 50%
About 10%
About 25%
Invertebrates all have exoskeletons.
True
False
One difference between a vertebrate and an invertebrate is:
Vertebrates have a backbone, while invertebrates do not.
Invertebrates have fur, while vertebrates do not.
Vertebrates have six legs, while invertebrates have four.
Invertebrates can fly, while vertebrates cannot.
Fill in the blank: Invertebrates with shells usually belong to Phylum _____.
Mollusca
Arthropoda
Annelida
Echinodermata
Select the correct differences between mammals and reptiles.
Mammals have hair and give birth to live young, while reptiles have scales and lay eggs.
Mammals have feathers and lay eggs, while reptiles have hair and give birth to live young.
Mammals have scales and are cold-blooded, while reptiles have hair and are warm-blooded.
Mammals lay eggs and have scales, while reptiles give birth to live young and have hair.
An exoskeleton is:
an external skeleton that supports and protects an animal's body
a type of plant structure
an internal organ system
a form of camouflage used by animals
One invertebrate that has an exoskeleton is:
Earthworm
Jellyfish
Spider
Leech
Fill in the blank: Invertebrates without an exoskeleton usually live in _____ environments.
Water
Desert
Mountain
Arctic
Jellyfish have a backbone.
True
False
Which of the following is not an invertebrate?
A) Octopus
B) Butterfly
C) Snake
D) Earthworm
Most invertebrates need to stay small because:
they lack complex support systems for larger bodies.
they have highly efficient circulatory systems.
they require more food as they grow larger.
they can regulate body temperature easily.
Fill in the blank: An insect’s skeleton is made of a tough substance called _____
Chitin
Keratin
Collagen
Cellulose
Invertebrates are important to ecosystems because they:
help decompose organic matter and recycle nutrients.
are the largest land mammals.
produce oxygen through photosynthesis.
form the backbone of all vertebrates.
All vertebrates share which structure?
Backbone
Gills
Wings
Exoskeleton
Fish are cold-blooded vertebrates that live in water.
True
False
Identify the vertebrate group that lays soft, leathery eggs and has scales.
Amphibians
Reptiles
Birds
Mammals
Fill in the blank: Birds are covered in _____ and have _____ to help them fly.
Feathers, wings
Fur, paws
Scales, fins
Shells, flippers
One key difference between amphibians and reptiles is:
Amphibians have moist skin, while reptiles have dry, scaly skin.
Amphibians lay eggs on land, while reptiles lay eggs in water.
Reptiles undergo metamorphosis, while amphibians do not.
Reptiles breathe through their skin, while amphibians do not.
Fill in the blank: Mammals that lay eggs, like the platypus, are called _____
Monotremes
Marsupials
Rodents
Primates
The vertebrate group with the greatest number of species is:
Mammals
Birds
Reptiles
Fish
All mammals give live birth.
True
False
Warm-blooded refers to animals that can regulate their body temperature internally.
Animals that can regulate their body temperature internally
Animals that change body temperature with the environment
Animals that only live in warm climates
Animals that do not need to eat to stay warm
Cold-blooded means:
having a body temperature that changes with the environment
having a constant body temperature
being able to survive only in cold climates
producing their own body heat
Scientists sometimes reclassify organisms because:
new information about the organisms is discovered
they want to make the classification system more complicated
organisms never change over time
it is required by law
Technology has had no effect on how species are classified.
True
False
Fill in the blank: _____ analysis is now used to compare genetic material between species.
DNA
Protein
Lipid
Carbohydrate
Scientists use which tool to study relationships between species?
Microscope
Phylogenetic tree
Telescope
Barometer
DNA helps scientists group organisms more accurately because:
it shows genetic similarities and differences between organisms.
it is only found in plants.
it determines the color of an organism's skin.
it is unrelated to how organisms are grouped.
The kind of evidence that caused bacteria to be split into two kingdoms is:
genetic evidence
fossil evidence
behavioral evidence
morphological evidence
The classification system we use today will never change again.
True
False
Which of the following is an example of a species that was recently reclassified?
African elephant
Bald eagle
Giant panda
Tasmanian tiger
The most specific level of classification is:
Genus
Order
Family
Species
Fill in the blank: Organisms that share a recent ancestor are placed in the same _____
Genus
Kingdom
Order
Phylum
Using scientific names is better than common names because:
they are universally accepted and avoid confusion.
they are easier to pronounce for everyone.
they are based on local languages.
they change frequently depending on the region.
The highest level in the Linnaean system is:
Genus
Order
Domain
Family
One modern example of technology that helps classify organisms is:
DNA sequencing
Steam engine
Television
Typewriter
Two animals with different genus names can never be related.
True
False
The modern classification system consists of how many kingdoms?
Three
Five
Six
Four
Select one organism from the kingdom Protista.
Amoeba
Mushroom
Fern
Earthworm
Select one organism from the kingdom Fungi.
Mushroom
Fern
Algae
Moss
What is the kingdom of organisms that make their own food and have cell walls?
Plantae
Animalia
Fungi
Protista
Humans belong to Kingdom Animalia.
True
False
Which kingdom contains organisms with no nucleus?
Monera
Plantae
Fungi
Animalia
What is the main difference between plants and animals?
Plants make their own food; animals do not.
Animals make their own food; plants do not.
Both plants and animals make their own food.
Neither plants nor animals make their own food.
What process do plants use to make their own food?
Photosynthesis
Respiration
Transpiration
Fermentation
What gas do plants take in during photosynthesis?
Carbon dioxide
Oxygen
Nitrogen
Hydrogen
What gas do plants release during photosynthesis?
Oxygen
Carbon Dioxide
Nitrogen
Hydrogen
What green pigment do plants use to capture sunlight?
Chlorophyll
Hemoglobin
Melanin
Keratin
What are the two main groups of plants?
Flowering and non-flowering plants
Woody and herbaceous plants
Annual and perennial plants
Edible and non-edible plants
Give an example of a flowering plant.
Rose, sunflower, or daisy
Moss, fern, or pine
Algae, mushroom, or yeast
Cactus, pinecone, or seaweed
Give an example of a non-flowering plant.
Fern, moss, or pine tree
Rose, sunflower, or tulip
Apple tree, cherry tree, or peach tree
Daisy, marigold, or lily
What are the tiny parts that grow into new plants called?
Seeds or spores
Roots
Stems
Leaves
What is the function of plant roots?
To anchor the plant and absorb water and nutrients
To produce flowers and fruits
To carry out photosynthesis
To attract pollinators
