What I Know
Directions: Choose the letter of the correct answer and write it on a piece of
paper.
1. Those organisms which have more similarities are closely related to each
other. Which is considered the largest category into which organisms have
been classified?
a. Class c. Kingdom
b. Domain d. Phylum
2. Families consist of several genera (genus), and each genus comprise the
smallest group of various organisms. Which of the following is being referred
to the smallest group of organisms in the classification?
a. Class c. Order
b. Genus d Species
3. Based from the early studies, scientists came up with the three-domain
system of classification. Which of the following refers to this?
a. Animalia – Chordata – Mammalia
b. Archaea – Bacteria – Eukarya
c. Kingdom – Phylum – Class
d. Eukaryotes – Prokaryotes – Bacteria
4. Scientific names of organisms consist of two names. Which of the following is
referred to as the way of naming organisms?
a. Binomial System of Classification
b. Kingdom-Phylum System
c. Scientific Name
d. Three-Domain system of classification
5. Which of the following is an example of species name of organism?
a. Canidae c. Mammalia
b. familiaris d. Panthera
6. Identify the correct pair of words base on naming organisms.
a. genus : species c. mammal : chordates
b. kingdom : class d. order : genus
7. Which of the following is not being considered in classifying organisms?
a. Complexity of organisms’ body
b. Major ecological role
c. Mode of nutrition
d. Name of scientist who discovered
8. Which is the largest group in the classification of organisms?
a. Genus c. Family
b. Class d. Kingdom
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9. How is the scientific name of organisms being written?
a. Using Greek language c. Italicized
b. Using Roman language d. Using English Language
10.Who was the scientist who made a great contribution in naming organisms?
a. Alexander Fleming c. Charles Darwin
b. Carolus Linnaeus d. Robert Hooke
11.If humans and monkeys belong to the same class, then, they must belong to
the same ____.
a. genus c. order
b. family d. phylum
12.In the binomial system of classification, an organism is given two names.
What is it composed of?
a. genus and species name c. family and genus name
b. order and species name d. class and species name
13.Which among the following areas of taxonomy refers to the giving of names
to living organisms?
a. Identification c. Classification
b. Nomenclature d. Taxon
14.All of the following are the threats to biodiversity EXCEPT:
a. Overexploitation c. Sanctuaries
b. Population d. Alien species
15.Which of the following is the basic unit of classification?
a. class c. family
b. genus d. species