WorksheetsLinnaean Classification of Living Organisms
Total questions: 20
Worksheet time: 18mins
Living organisms are sorted into groups based on shared features. These groups are arranged in a classification hierarchy. Refer to the table below. Which of the following pairs of organisms in the table are most closely related?
The rodent and gorilla
The frog and the lizard
The lizard and the bird
The gorilla and the bird
A student named Ava read about Carolus Linnaeus's classification system. She was interested to learn that domains had not been part of the Linnaean system. What is the value of Linnaeus’ system, and how is it applied today?
The Linnaean system has been used for centuries and has eventually become so full that classifications need to be shortened.
Even though it is an organized way to classify living things, it doesn’t allow for changes or new organisms. It had to be made into a new sort of classification system.
Organisms are added continuously to the Linnaean system and it has been used to name, classify, and organize living things for centuries.
The Linnaean system provided a way to organize and classify living things, and it has been changed over the years. With new ideas being added, this system is no longer used.
David and Henry are scientists working on classifying organisms based on their physical and biological characteristics. Which of the following tools would they need to determine how closely related two organisms are and to classify them accurately?
A scale to weigh the mass of the organism
An x-ray to examine the skeletons of the organisms
A yardstick to measure the length of the organism
a triple-beam balance to measure the weight of each of the organisms
Which of the following characteristics is NOT a feature of eukaryotic cells?
Membrane-bound nucleus
Absence of membrane-bound organelles
DNA organized into chromosomes
Larger size compared to prokaryotic cells
Lisa cannot determine an organism’s correct kingdom. She knows the organism is heterotrophic, eukaryotic, and multicellular. Based on these three characteristics, which of the following characteristics does Lisa need to know in order to identify the kingdom of the organism?
Whether the organism has or doesn't have a cell wall.
Whether the organism has or doesn't have golgi apparatus.
Whether the organism has or doesn't have vacuoles.
Whether or not the organism has fur.
According to the phylogenetic tree, which statement is accurate?
Archaea and eukaryotes share more genetic differences than Archaea and Bacteria.
Archaea and eukaryotes have more genetic similarities than Bacteria and Eukaryotes.
The genetic material in Bacteria suggests that all three domains evolved independently.
Within the Eukarya branch, animals and fungi are more genetically distinct than plants and fungi.
To which kingdom does this organism most likely belong? • single-celled • capable of photosynthesis • capable of movement • reproduces both sexually and asexually
A. Animalia
B. Plantae
C. Protista
D. Fungi
Identify the characteristics that belong to the kingdom Fungi from the list below:
Eukaryotic
Cell wall
Unicellular and Multicellular
Heterotrophic
A student observes a butterfly in a garden. The student writes down the following information about the butterfly in a science journal: • It has wings with a span of 5 centimeters (cm). • It is searching for nectar. • It has six legs. • It is resting on a flower. • It prefers bright flowers over dull ones. What is the student assuming?
It has wings with a span of 5 centimeters (cm).
It is searching for nectar.
It has six legs.
It is resting on a flower.
It prefers bright flowers over dull ones.
Draw an example of an organism that is multicellular, an autotroph, and has one vacuole.
A student discovers an arachnid without a segmented abdomen, and legs longer than its body. The student uses the dichotomous key below to identify it. Which arachnid has the student found?
Whip Scorpion
Wind Scorpion
Daddy long legs
Scorpion
A student discovers an arachnid without a segmented abdomen, and legs longer than its body. The student uses the dichotomous key below to identify it. Which arachnid has the student found?
Whip Scorpion
Wind Scorpion
Daddy long legs
Scorpion
The following list represents characteristics of a living thing :
made of cells, has lungs, cannot reproduce
made of cells, grows and develops, uses energy
has similar chemicals, makes noises, made of cells
What is the Linnaean system based on?
DNA similarities
characteristic similarities
physical similarities
color similarities
Linnaeus based his system on observational studies of the ___ and ___ of organisms.
morpheus; biology
morphvox; balance
morphology; behavior
Draw an example of an organism that is a Heterotroph, multicellular, and has no cell wall.
