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1. About how many different things are on Earth?
A
More than 1.6 million identified species
B
Flying beings, aquatic beings and terrestrial beings
C
8.7 million species
2. How do scientists determine the names for so many different living things?
A
They just put the name that comes to mind first
B
They investigate in fairy tales
C
They use a classification system
3. Why might it be important to have a system for identifying and naming organisms
A
Because they want to be the only ones to be right
B
It helps ensure that all of one type of organism is known by the same name in the world.
C
Because that's how they did it in the old days
4. What kind of traits do you think would be useful for classifying organisms?
A
Physical traits like color, size, hair, skeletal structure, live birth, and so on would be useful.
B
Age, sex (gender) and tastes
C
The place where they live, their habits and their diet
5. What might make it difficult to classify an organism?
A
Having different criteria to organize the classification
B
Some organisms look alike on the outside but are very different on the inside.
C
All of the above.
6. Who might be interested in correctly identifying organisms?
A
The government of a country
B
The parents of the students.
C
Scientists who study various living things (such as botanists and zoologists).
7. What is taxonomy?
A
Taxonomy is the science of naming and classifying organisms into groups based on shared traits.
B
The science that calculates taxes
C
It is a taxi company
8. What are the eight levels of organization used for classifying all living things?
A
gendre, weather, age, prefferences, skin, size, feeding, habbits
B
Domain, kingdom, phylum, class, order, family, genus, and species
C
family, relatives, sibilings, ancesters, descendents, blood line, hair, skin
9. What is a distinguishing characteristic?
A
Trait
B
Feature
C
Attribute
10. What is a scientific name?
A
A name that the first humans gave to organisms
B
The taxonomic name of an organism that consists of the genus and species
C
The name that occurs to the scientist when he discovers a new species
11. A tool used to identify a species by answering a series of questions based on contrasting features that have two possible outcomes
A
Dichotomus key
B
Taxonomy
C
Classification
12. How can DNA be used to classify organisms?
A
DNA automatically classifies organisms
B
With a very powerful scanner, the DNA shows the scientific name of the species
C
Scientists can compare the DNA of any two organisms to see how similar the DNA code is.