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Unicellular Vs. Multicellular Organisms
Test Description: Unit Test 4 part 2
Instructions: Answer all questions to get your test result.
1) complex organisms require a large number of cells that
A
will keep the organism warm
B
are specialized and work together
C
resist being attacked by viruses and bacteria
D
can retain more water than a small number of cells
2) Which must be present in order for something to be classified as an organism?
A
organelle
B
cell
C
organ
D
nucleus
3) An organism such as a nematode worm may have only 1000 cells. It should be classified as being
A
multicellular
B
a bacteria
C
unicellular
D
a virus
4) What is the most likely function of a cell that is shaped like the root and stem of a tree?
A
to carry blood throughout the body
B
to provide structure and support
C
to provide a cover over body tissues
D
to carry impulses throughout the body
5) Which parts of a plant function as an organ?
A
chlorophyll molecules
B
leaves
C
spores
D
root hairs
6) An elephant is a multicellular organism that weighs about 200 pounds at birth and can grow to weigh as much as 15,000 pounds. What increases as the elephant grows into an adult?
A
the size of each body cell
B
the number of cells in the body
C
the amount of energy in its cells
D
the collection of water in each cell
7) Scientists found a new species of a complex organism at the bottom of the ocean. The organism most likely
A
is unicellular
B
lacks an organized nucleus
C
is a form of bacteria
D
is made of multiple cells
8) Which statement about all living organisms is true?
A
They produce their own food
B
they breathe air
C
They have limbs
D
they have at least one cell
9) Which of the following represents the smallest level or organization in the body?
A
the heart
B
the circulatory system
C
cardiac muscle tissue
D
a muscle cell
10) Which is the term given to a projection of cytoplasm, or false foot, used by some protists for feeding or movement?
A
pseudopod
B
trichocyst
C
cilia
D
flagellum
*select an answer for all questions
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