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WorksheetsSemester 2 Science - Taxonomy
Total questions: 16
Worksheet time: 8mins
What does the word taxonomy mean?
The classification and naming of plants and bacteria in an ordered system that is intended to indicate natural relationships, especially evolutionary relationships.
The classification and naming of organisms in an ordered system that is intended to indicate natural relationships, especially evolutionary relationships.
The classification and naming of organisms into natural relationships that are identified according to what the animals eat and how they reproduce
The classification and naming of animals in an ordered system that is intended to indicate natural relationships, especially evolutionary relationships.
What does a vertebrate animal have that an invertebrate animal does not?
Heart, brain and intestines
Well developed internal organs
A spinal column or in other words a backbone
Limbs and eyes
Are jellyfish, worms, snails and spiders vertebrates or invertebrates?
They are both vertebrates and invertebrates
They don't belong to either of theses groups
Vertebrates
Invertebrates
Who was the first to create a system of organism classification?
Swedish scientist Carl Linnaeus
A group of American scientists
English scientist Alfred Russel Wallace
English scientist Charles Darwin
Are tigers, pigs, chickens, frogs and fish vertebrates or invertebrates?
Tigers, pigs and chickens are vertebrates but not frogs and fish.
Vertebrates
Invertebrates
They don't belong to either groups
What is the name of the internationally used classification system and what does it mean?
Darwinian system, which name organisms using only one word (e.g.: fish, monkey, elephant, etc.)
Aristotelian system, which had three different groups (plants, animals and humans)
Binominal nomenclature, which means that an organism has two names (genus and species)
Binominal nomenclature, which means that an organism has two names (kingdom and phylum)
What does homologous trait mean?
Animals have similar traits due to genetic relationship (opposable thumbs = chimpanzees & orangutans)
Animals have similar traits due to the way they look (phenotypic relationship) (wings = birds & bats)
It means that animals have some traits from other animals (e.g.: binocular vision)
It refers to traits that all organisms have even if they are single celled organisms
Do you think that the birds' wing and the bat's wing is a homologous or an analogous trait?
It is neither analogous nor homologous.
It hasn't been scientifically established yet
It is an analogous trait
It is a homologous trait
What are the four qualities that define if an organism is an animal?
Eater, mover, sexually reproducer and single cellular
Eater, mover, sexually reproducer and multicellular
Eater, drinker, sexually reproducer and multicellular
Eater, mover, breather and sexually reproducer
What do scientists use the molecular clock for?
To estimate how long ago two species diverged by comparing their DNA sequences
To analyse what the difference between animals, plants and single celled organisms by comparing their DNA sequences
To analyse fossils and living animals and determine how similar they are by comparing their DNA sequences
To see how many animals there are in the world by analysing their DNA sequences
How does the genome of an organism change in time?
By non-random mutation
By random mutation
By asexually reproducing
By sexually reproducing
How old are some of our earliest records of humanity?
40,000 thousand years old
4,000 thousand years old
400,000 thousand years old
50,000 years old
According to Aristotle, why were animals different from plants?
Because he didn't know about single celled organisms.
Because they moved around and grew, but ate different things than plants.
Because they moved around and sensed their environment.
Because they sexually reproduced but sensed different things in their environment than plants.
Are frogs, salamanders and toads reptiles, mammals, amphibians or none of these?
Mammals
Reptiles
None of these
Amphibians
Are turtles, crocodiles, snakes and lizards mammals, reptiles, amphibians or none of these?
Amphibians
Reptiles
Mammals
None of these
Are bats mammals or birds or they don't belong to any of these two groups?
Birds
Mammals
They don't belong to any of these two groups.
