1. Which level of biological organization is
composed of tissues?
a. Cell
b. Organ
c. Molecule
d. Atom
b. Organ
2. Look at the pictures below of the cheetahs
and the paramecium ( a single-celled
organism). Then answer the question that
follows.
2. Which of the following statements about the
cheetahs and paramecium is false?
a. These organisms respond to their
environment.
b. The cells of these organisms have the same
basic structure.
c. Homeostasis and metabolism are important
for the cheetah but not for a paramecium.
d. Reproduction means that the organisms
will be able to produce more of their own
kind.
c. Homeostasis and
metabolism are important
for the cheetah but not for a
paramecium.
3. We sent an unmanned spacecraft to
another planet to detect other life forms that
might be quite different from those on earth.
If the probe can only send back one still
picture, which property of life would be most
evident?
a. Organization
b. Homeostasis
c. Growth and development
d. Response to stimuli
a. organization.
4. The smallest unit that has all of the
characteristics of life is the
a. Cell
b. Tissue
c. Organ
d. Organism
a. Cell
5. Autotrophs obtain energy through
________________, while heterotrophs
obtain energy through
___________________.
a. photosynthesis, food eaten
b. decomposition, reproduction
c. food eaten, photosynthesis
d. reproduction, decomposition
a. photosynthesis,
food eaten
6. Growth and/or development is not
observed in the human organism during
a. childhood
b. adolescence.
c. repair of an injury.
d. death.
d. death.
7. Which of the following is NOT an example
of a response to a stimulus?
a. A plant growing towards the sunlight.
b. A caterpillar changing into a butterfly.
c. The pupil of the eye changes in size with
changes in light intensity.
d. Stingers are discharged from the
tentacles of a jellyfish when touched.
b. A caterpillar
changing into a
butterfly.
8. Give one advantage each of sexual
and asexual reproduction.
Sexual: offspring has a mix of traits from
both parents, so they are more diverse and
may have a better chance of surviving
changing conditions in the environment
Asexual: Parent does not need to find a
mate, which is helpful in an environment
where there are few individuals of an
particular species.
9. Using a butterfly as an example,
compare and contrast the processes
of growth and development.
Growth involves an increase in the size of
the organism or the number of cells, so
when a butterfly grows, the length of its
body may increase from 2-4 inches.
Development involves a change in the
form of an organism, so when a butterfly
develops, they go from the caterpillar
(larva) stage to the cocoon (pupa) stage to
the adult stage (with wings).
10. Define homeostasis and give two
examples of homeostasis in living
things.
Homeostasis means to maintain
constant internal conditions regardless
of the external environment.
Two examples in living organisms
include sweating to keep your body
cool, and expelling wastes by going to
the bathroom.