Deck 1: Biology: Exploring Life

Question 1

The role of a control in an experiment is to

A)counteract the negative effect of the experiment.
B)ensure repeatability.
C)prove that a hypothesis is correct.
D)provide a basis of comparison to the experimental group.

Answer 1

D

Question 2

Which of the following statements about genetics is true?

A)DNA is made up of six different kinds of nucleotides.
B)Genes are proteins that produce DNA.
C)Differences among organisms reflect different nucleotide sequences in their DNA.
D)Each DNA molecule is a single strand of nucleotides.

Answer 2

C

Question 3

A scientist performs a controlled experiment.This means that

A)two experiments are conducted,one differing from the other by only a single variable.
B)one experiment is performed,but the scientist controls the variables.
C)the experiment proceeds at a slow pace to guarantee that the scientist can carefully observe all reactions and process all experimental data.
D)the experiment is repeated many times to ensure that the results are accurate.

Answer 3

A

Question 4

In an ecosystem,energy

A)typically flows from consumers to producers to decomposers.
B)comes ultimately from bacteria.
C)typically flows from producers through a series of consumers.
D)cycles along with chemical nutrients.

Question 5

Which of the following is not an example of evolution that has resulted from human activity?

A)Some insect species are now resistant to pesticides.
B)Many strains of bacteria are now resistant to some commonly used antibiotics.
C)Because of hunting,species such as bears and wolves are in danger of extinction.
D)Like certain other crops,domesticated strawberries are larger than wild strawberries.

Question 6

Which of the following best represents an example of technology?

A)sequencing the human genome
B)developing a test for genetic diseases
C)identifying the cause of a new contagious disease
D)figuring out what mountain gorillas eat

Question 7

You notice that over the past month,many students on campus have started wearing a new style of school sweatshirt.You think to yourself that perhaps the bookstore has recently started selling this new sweatshirt style.This prediction is an example of

A)a type of observation.
B)a hypothesis.
C)an experimental question.
D)an experiment.

Question 8

Which of the following statements about the properties of life is false?

A)All organisms have the ability to respond to stimuli from the environment.
B)All organisms have the ability to reproduce.
C)All organisms have the ability to maintain a constant internal temperature.
D)All organisms have the ability to take in energy and use it.

Question 9

What is the difference between a tissue and an organ system?

A)A tissue cannot exist unless it is a component of an organ system,whereas an organ system can exist independently of tissues.
B)Tissues are not composed of cells; organ systems are composed of cells.
C)The tissue level of organization is more inclusive than the organ system level.
D)An organ system includes tissues.

Question 10

An antibiotic kills 99.9% of a bacterial population.You would expect the next generation of bacteria

A)to be just as susceptible to that antibiotic as was the previous generation.
B)to be more contagious than the prior generation.
C)to be more resistant to that antibiotic.
D)to die out due to the drastic decrease in population size.

Question 11

If you eat a hamburger,you are mainly eating ground- up beef muscle.What levels of organization are represented in this ground- up muscle?

A)organelle,cell,and tissue
B)organism,population,and community
C)tissue,organ,and organ system
D)organ,organ system,and organism

Question 12

Which of the following statements regarding a common cellular activity is false?

A)Cells respond to the environment.
B)Cells regulate their internal environment.
C)Cells develop and maintain complex organization.
D)New cells are derived from cellular components like organelles.

Question 13

Which of the following statements is not consistent with Darwin's theory of natural selection?

A)Natural selection can lead to the appearance of new species.
B)Individuals in a population exhibit variations,some of which are passed from parents to offspring.
C)Individual organisms exhibit genetic change during their life spans to better fit their environment.
D)Factors in the environment result in some organisms having better reproductive success than others.

Question 14

Kingdom Fungi includes species

A)that use photosynthesis to obtain food.
B)that obtain food by decomposing dead organisms and absorbing the nutrients.
C)such as mushrooms and plants.
D)that obtain food by ingestion.

Question 15

The tree in your backyard is home to two cardinals,a colony of ants,a wasp's nest,two squirrels,and millions of bacteria.Together,all of these organisms represent

A)a species.
B)a population.
C)an ecosystem.
D)a community.

Question 16

Which level in the hierarchy shown is a community?

A)level A
B)level B
C)level C
D)level D

Question 17

Which of the following is a kingdom within the domain Eukarya?

A)Archaea
B)Bacteria
C)Fungi
D)Viruses

Question 18

The teeth of grain- eating animals (such as horses)are usually broad and ridged.This makes the teeth suitable for grinding and chewing.Meat- eating animals (such as lions)have pointed teeth that are good for puncturing and ripping flesh.This illustrates

A)the connection between form and function only.
B)a food web.
C)a result of natural selection only.
D)a result of natural selection as well as the connection between form and function.

Question 19

Your instructor asks you to look into your microscope to see a prokaryotic cell.You will be looking for a cell that

A)has a membrane.
B)is much larger than most cells in your body.
C)has a nucleus.
D)makes up most of the tissues of your body.

Question 20

Organisms that are prokaryotes are in the domains

A)Plantae and Animalia.
B)Eukarya and Archaea.
C)Bacteria and Archaea.
D)Fungi and Bacteria.

Question 21

Which of the following statements about the domain Bacteria is true?

A)All bacteria are multicellular organisms.
B)Archaea belong to this domain.
C)All bacteria lack a nucleus.
D)All bacteria have a membrane- bound nucleus.

Question 22

To be scientifically valid,a hypothesis must be

A)reasonable.
B)part of a theory.
C)testable and falsifiable.
D)controlled.

Question 23

Life is organized in a hierarchical fashion.Which of the following sequences correctly lists that hierarchy from least inclusive to most inclusive?

A)molecule,organelle,cell,tissue,organ,organ system,organism,population,community,ecosystem
B)cell,molecule,organ system,organ,organelle,population,tissue,organism,ecosystem,community
C)ecosystem,population,organ system,cell,community,molecule,organ,organism,organelle,tissue
D)organism,organ system,tissue,population,organ,organelle,community,cell,ecosystem,molecule

Question 24

Which of the following statements about ecosystems is false?

A)Plants and other photosynthetic organisms are producers in ecosystems.
B)In the process of energy conversions within an ecosystem,some energy is converted to heat.
C)Chemical nutrients cycle within an ecosystem.
D)Bacteria and fungi recycle energy within an ecosystem.

Question 25

All organisms belonging to the kingdom Plantae

A)are multicellular and lack a nucleus.
B)are unicellular and lack a nucleus.
C)are photosynthetic.
D)obtain food by decomposing the remains of dead organisms and absorbing the nutrients.

Question 26

Which of the following organisms belongs to the group represented in Box 1?

A)leopard
B)tree
C)decomposing bacteria
D)giraffe

Question 27

Consider the following statement: "If all vertebrates have backbones,and turtles are vertebrates,then turtles have backbones." This statement is an example of

A)rationalization.
B)inductive reasoning.
C)a hypothesis.
D)deductive reasoning.

Question 28

Members of the kingdom Animalia

A)make their own food through photosynthesis.
B)can obtain their food by eating other organisms.
C)are composed of cells that lack a cell membrane.
D)can obtain their food either by absorption or by photosynthesis.

Question 29

The ultimate source of energy flowing into nearly all ecosystems is

A)electricity.
B)wind.
C)sunlight.
D)radioactivity.