WorksheetsThe Study of Life
Total questions: 32
Worksheet time: 31mins
1. The term biosphere refers to the parts of Earth that contain
a. freshwater environments.
b. living things.
c. land masses.
d. greater biodiversity.
2. Which phrase best describes Earth’s biodiversity?
a. greater in consistently warm areas
b. greater toward Earth’s poles
c. greater according to energy needs
d. greater where temperatures are most variable
3. An individual living thing is called a(n)
a. species.
b. cell.
c. atom.
d. organism.
4. Which of these characteristics is shared by all living things?
a. They are made up of one or more cells.
b. They make their own chemical energy.
c. They have similar responses to light.
d. They reproduce when one cell divides into two.
5. The basic unit of life is
a. the cell.
b. an atom.
c. DNA.
d. a species
6. At all levels of life, when related parts interact to form a whole they form a
a. biosphere.
b. species.
c. cell.
d. system.
7.Which statement best explains why the shape of teeth differs according to the diet of a species?
a. Individual parts must work together.
b. Organisms interact with other organisms.
c. Structure and function are related in biology.
d. Organisms must maintain homeostasis.
8. The maintenance of constant internal conditions in an organism is known as
a. homeostasis.
b. negative feedback.
c. structure specialization.
d. adaptation.
9. Which aspects of life on Earth are accounted for by evolution?
a. diversity and unity
b. interaction and conflict
c. lack of genetic and physical change
d. divergence of structure and function
10. A beneficial inherited trait that is passed on to future generations is a(n)
a. stimulus.
b. adaptation.
c. system.
d. homeostatic mechanism.
The term biosphere refers to the parts of Earth that contain
freshwater environments.
living things.
land masses.
greater biodiversity.
Scientists use scientific thinking to test
data.
hypotheses.
observations.
conclusions.
Which is true about a dependent variable in an experiment?
It is the experimental data.
It is manipulated by a scientist.
It never changes during the experiment.
It is not affected by the independent variable.
When scientists are “evaluating results” as a part of scientific thinking, they mainly
explain data they collected and analyzed.
collect data from other scientists.
examine prior research on a topic.
use statistics to analyze their data.
Which of the following statements is true of the many parts of the biosphere?
Each part is isolated from the others.
Each part is completely unique.
Each part is connected to all the others.
Each part includes salt water.
On Earth, biodiversity generally increases from the
poles to the equator.
equator to the rainforest.
east to the west.
north to the south.
Which of the following lists the three domains accepted by most scientists?
Bacteria, Protista, and Eukarya
Bacteria, Fungi, and Protista
Eukarya, Archaea, and Bacteria
Archaea, Prokaryote, and Eukaryote
Single-celled prokaryotes that are classified by their ability to survive extreme conditions are
fungi.
archaea.
protists.
eukaryotes.
What characteristic of fungi makes them different from plants?
They grow only in shade.
They have a different cell membrane.
They do not feed in the same way.
They are prokaryotes, not eukaryotes.
An infectious particle made of a strand of nucleic acid surrounded by protein is a
bacteria.
virus.
viroid.
prion.
An infectious particle made only of protein is called a
virus.
bacteria.
prion.
viroid.
Any organism or particle that can cause an infectious disease is called a
bacteria.
virus.
viroid.
pathogen.
Which of the following are infectious RNA particles that cause disease in plants?
viroids
prions
viruses
bacteria
Which of the following are one-celled prokaryotes?
viruses
bacteria
prions
viroids
What part of a virus determines which host the virus infects?
receptor molecules
plasma membrane
surface proteins
nucleic acids
Viruses that infect bacteria are called
bacteriophages.
helical viruses.
helical viruses.
prophages.
In which of the following types of infection will the infected host cell burst?
lysogenic infection
prophage infection
provirus infection
lytic infection
The protein shell of a virus is called a
capsid.
spike.
tail sheath.
envelope.
When viral DNA combines with the host cell’s DNA, the viral DNA becomes a
virion.
prophage.
capsid.
membrane.
When viral DNA combines with the host cell’s DNA, the viral DNA becomes a
virion.
prophage.
capsid.
membrane.
Which of the following is a rapid outbreak of an infection that affects many people?
an influenza
an epidemic
a provirus
a mutation
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