1of20Which of the following is a property of life that is best illustrated by shivering and sweating?Order

Reproduction

Regulation

Growth and development

5 out of 5Correct!!

Question2of20Which of the following is the correct order of complexity, going from least to most complex?Atom, molecule, cell, tissue, organelle, organ

Atom, molecule, organelle, cell, tissue, organ

Organ, tissue, cell, organelle, molecule, atom

Molecule, atom, organ, tissue, cell, organelle

5 out of 5Correct!!

Question3of20The _______ is the highest level in life's structural hierarchy.Ecosystem

Population

Organism

Biosphere

5 out of 5Correct!!

Question4of20Which of the following is an example of homeostasis? An organism that canassimilate and use energy.

respond to the environment.

evolve from other organisms.

maintain a relatively constant internal temperature.

5 out of 5Correct!!

Question5of20Biologists group living things into ______ domains.2

3

4

5

5 out of 5Correct!!

Question6of20Almost all of the organisms in Kingdom _______ are photosynthetic.Animalia

Archaea

Plantae

Fungi

5 out of 5Correct!!

Question7of20Which kingdom of Eukarya consists primarily of unicellular organisms?Plantae

Fungi

Animalia

Protista

5 out of 5Correct!!

Question8of20A researcher collected archaea and protists from a thermal vent. How do the cells of these two organisms differ?Protist cells will contain organelles.

Protist cells will contain DNA.

Archaea cells will contain nuclei.

Archaea cells will be larger.

5 out of 5Correct!!

Question9of20What is one mechanism of evolution?Adaptation

Natural selection

Differential reproductive success

Survival of the fittest

5 out of 5Correct!!

Question10of20In his book The Origin of Species, Charles Darwin developed which of the following main points?The world is very old, and evolution occurs by natural selection.

Evolution occurs slowly, and new species form by spontaneous generation.

New species evolve by mutations, and new species don't reproduce with old species.

Modern species descended from ancestral species, and organisms evolve by natural selection.

5 out of 5Correct!!

Question11of20Which of the following is most closely associated with Charles Darwin?Natural selection

The three domains of life

Genetics

Organelles

5 out of 5Correct!!

Question12of20What accounts for the different breeds of domesticated dogs?Over production

Natural selection

Artificial selection

Variation

5 out of 5Correct!!

Question13of20The difference between a theory and a hypothesis isa theory must be proven without a shadow of a doubt.

a hypothesis must be proven without a shadow of a doubt.

a hypothesis must be supported by evidence.

a theory must be supported by evidence.

community.

5 out of 5Correct!!

Question14of20A good hypothesis mustbe falsifiable.

be true.

be theoretical.

lead to a question.

0 out of 5The correct answer is:be falsifiable.

Question15of20Researchers testing new drugs usually give the drug to one group of subjects, while another group of subjects receive placebos (sugar pills). The group that receives the placeboconstitutes the experimental group.

is needed so the test can be repeated several times.

is the control group.

is the experimental variable.

5 out of 5Correct!!

Question16of20Which of the following is a required element of a hypothesis-based scientific experiment?Conducting the test accurately and correctly once

A testable, falsifiable hypothesis

Including only experimental groups

None of the above

0 out of 5The correct answer is:A testable, falsifiable hypothesis

Question17of20Which of the following are the proper components of the scientific method?Experiment, conclusion, application

Question, observation, experiment, analysis, prediction

Observation, question, hypothesis, prediction, experiment, results, conclusion

Prediction, hypothesis, experiment, conclusion

5 out of 5Correct!!

Question18of20Identify the experimental group of this case study.Brightly colored female lizards

Brightly colored male lizards

Dull-colored female lizards

Dull-colored male lizards

5 out of 5Correct!!

Question19of20Which of the following is the hypothesis of this case study?Male lizards are brightly colored.

Male collared lizards exhibit color variation.

Dull males are less likely to be eaten by predators.

A function of male coloration is to attract females.

5 out of 5Correct!!

Question20of20"Male collared lizards show considerable color variation." This is a(n) ______.hypothesis

conclusion

observation

opinion

5 out of 5Correct!!