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WorksheetsUnit 1 Study Guide
Total questions: 15
Worksheet time: 30mins
Chatton was the first to classify organisms based off of:
Autotrophic, Heterotrophic
Asexual, Sexual
Prokaryotic, Eukaryotic
Multicellular, Unicellular
Initially, Fungi were lumped together with plants. However, over time technology changed, allowing scientists to
recognize differences in organisms they hadn't noticed before.
According to the chart, in what year had Fungi
been classified in its own kingdom?
1937
1977
1969
1735
Algae are a type of protists that were once classified with plants but have since been classified into different kingdoms. Which of these identifies a different physical characteristic between the two?
Algae have holdfast instead of roots or rhizomes
Algae have flowers it uses in reproduction
Seagrass have blades that grow upwards
Seagrass have stipes which secure them to the holdfast
Legless lizard and Snakes are both reptiles with similar body shapes. They live in similar environments and sometimes are the same size. Which of the following might be a step in a dichotomous key to help identify an organism as either a Legless lizard or a Snake?
2a - body shape is long and slender with no legs
2b - body shape is long and slender with legs
2a - found in similar environments
2b - not found in similar environments
2a - overall size is similar to a eel
2b - overall size is similar to a slug
2a - no broad belly scales
2b - broad belly scales
Is reproduction method always a reliable way to classify organisms?
Yes, because organisms either reproduce sexually or asexually.
Yes, because organisms all reproduce both sexually or asexually.
No, because organisms can reproduce either sexually or asexually or in some cases both.
No, because organisms can reproduce either sexually or asexually, but never both.
Here is a collection of organisms. Taxonomists might study this collection to determine what about these organisms?
How they are related based on physical characteristics
If they are in an environment they do not belong
If they are able to coexist
How they can interbreed
How have classification models improved from the one represented here?
There really is no rhyme or reason, scientists classify organisms randomly with no logical thought process
Aristotle had a bias against some organisms and didn't want to include them in his model
Over time technology changed, allowing for scientists to recognize differences in organisms they hadn't noticed before.
Aristotle's model classified the same number of species as the current model, but it wasn’t based on physical characteristics like the current model is.
In prior models, Fungi were grouped with plants. In current models, they are in a separate kingdom. This is because...
Fungi are heterotrophic and they have differences in their cell walls
Plants are heterotrophic and they have differences in their cell walls
Fungi are unicellular and autotrophic
Plants are unicellular and autotrophic
In Linnaeus' time, it wasn't possible to see the different cell structures of organisms like we do today. Which of the characteristics of Kingdom Fungi have been discovered which caused scientists to reclassify Fungi as its own Kingdom?
Cell type and number of cells
How it obtains energy and its unique cell structures
How it reproduces and obtains energy
Its unique cell structures and its cell type
What is important about separating organisms on if they would belong to prokaryota and eukaryota?
Taxonomists are able to identify if organisms are single or multicellular
Taxonomists are able to identify if organisms have a nucleus and other membrane bound organelles or not
This allows taxonomists to identify if organisms are eating or obtaining their own energy
This allows taxonomists to identify if organisms are reproducing sexually or asexually
Protists and Fungi have historically been grouped with Plants. What physical characteristics have allowed them to be placed into their own kingdoms?
The number of cells they have, how they reproduce and how they obtain energy
How many of them there are, where they are located and how they grow
The type of cell they are, the quantity of offspring (babies) they have, and how they look
If they are decomposers, parasites or autotrophs
Currently, how are organisms classified into the Six Kingdoms?
Physical characteristics which make them the same as each other
Where they live, how they absorb light, energy, water and carbon dioxide
How they move, if they breathe oxygen and where they find their food
Physical characteristics which make them different from each other
How is this chart helpful in organizing Kingdom Animalia?
scientists can see which organisms share similar characteristics
scientists can see which organisms are in the same Genus and Species
scientists can explain why organisms are in the same Family
scientists are able to identify where an organisms' environment is located
Fido, here, is about to have a bad day as he is swimming through some potentially toxic 'blue-green algae'. Scientists do not consider this an algae, however, because of a physical characteristic this organism displays which helps to identify it as a bacteria. What is this characteristic?
The bacterial organism is multicellular
The bacterial organism is eukaryotic
The bacterial organism is prokaryotic
The bacterial organism reproduces sexually
