Filters
Question type

Study Flashcards

A scientific hypothesis must be ________; if not,science cannot evaluate it.


A) provable
B) testable
C) accepted
D) rejected

Correct Answer

verifed

verified

A scientific hypothesis must be constructed with which of the following characteristics?


A) It is always provable and clearly states what is already known to be fact.
B) It provides a reasonable explanation to a question and is consistent with current observations; it must also be testable and falsifiable.
C) It provides an explanation consistent with accepted theological ideas and does not need to be tested.
D) It does not require testing by experimentation or additional observations. It is not falsifiable.

Correct Answer

verifed

verified

Read each statement and identify whether the statement is a scientific fact,a scientific theory,or an opinion.Choices may be used more than once or not at all. Dead mice within a cave where bats are infected with white-nose syndrome (WNS) have white fuzz on their noses that appears to be similar to the white fuzz seen on the noses of bats ill with WNS. A researcher hypothesizes that mice are also susceptible to WNS when they live in close contact with infected bats. To test this hypothesis, the researcher captures 50 healthy mice and randomly separates them into two groups. One group is housed in an area that contains healthy bats. The other group of mice is housed in an enclosure that contains bats that have WNS. The mice in both groups are monitored for signs of WNS. -Mice housed in an area with bats that have WNS.


A) independent variable
B) dependent variable
C) control group
D) treatment group

Correct Answer

verifed

verified

Some questions fall outside the realm of science.Which of the following questions could NOT be answered using the scientific method?


A) What is the function of the appendix in human beings?
B) Why is it so difficult to quit smoking?
C) Why do smokers develop lung cancer more frequently than nonsmokers?
D) Why is it unethical to test newly developed drugs in animals?

Correct Answer

verifed

verified

Which of the following sequences correctly represents the biological hierarchy of a multicellular organism?


A) cells → tissues → organs → individual
B) tissues → organs → cells → individual
C) individual → cells → organ systems → tissues
D) organ systems → organs → tissues → individual

Correct Answer

verifed

verified

What characteristic is NOT shared by all living organisms?


A) They make their own energy.
B) They grow and develop.
C) They evolve through time.
D) They are composed of one or more cells.

Correct Answer

verifed

verified

Organize the following concepts in order of broadest interactions between groups to the smallest structure and give a brief explanation of the concepts: biome,biosphere,community,ecosystem,organism,and population.

Correct Answer

verifed

verified

Organism (an individual),population (a g...

View Answer

A species of butterflies gradually becomes darker in color over many generations; this is an example of which characteristic of living organisms?


A) They reproduce using DNA.
B) They obtain energy from the environment to support metabolism.
C) They can evolve as groups.
D) They sense the environment and respond to it.

Correct Answer

verifed

verified

Match the correct terms with the sentences below. -________the results.


A) tests
B) communicate
C) accept,reject,or modify
D) observe
E) analyze
F) hypothesis
G) predictions

Correct Answer

verifed

verified

In science,when a hypothesis or group of hypotheses supported by repeated experimental evidence holds true through time,it can be developed into a


A) law.
B) mathematical theorem.
C) hypothesis.
D) theory.

Correct Answer

verifed

verified

Match the correct terms with the sentences below. -Generate ________ to test your hypothesis.


A) tests
B) communicate
C) accept,reject,or modify
D) observe
E) analyze
F) hypothesis
G) predictions

Correct Answer

verifed

verified

Which of these characteristics of living organisms are present in viruses?


A) composed of one or more cells
B) can evolve as groups
C) maintain a constant internal environment
D) obtain energy from their environment

Correct Answer

verifed

verified

Read each statement and identify whether the statement is a scientific fact, a scientific theory, or an opinion. Choices may be used more than once or not at all. -White-nose syndrome in bats is a disease that is spreading across the United States.


A) scientific fact
B) scientific theory
C) opinion

Correct Answer

verifed

verified

Match each term describing a level of biological hierarchy with its proper description.Terms may be used more than once or not at all. -The individual building blocks of life,such as oxygen,are referred to as ________.


A) organism
B) organ
C) molecules
D) biome
E) ecosystem
F) atoms
G) biosphere

Correct Answer

verifed

verified

Land biomes are most commonly defined by


A) their climate, physical characteristics, and dominant animal life.
B) only the dominant plant life in them.
C) the dominant plant life that influences the dominant animal life in them.
D) their climate and physical characteristics that influence the dominant plant life and, subsequently, animal life in them.

Correct Answer

verifed

verified

Scientific understanding can always be challenged, and even changed, with new ways of observing and with different interpretations. For example, new tools and techniques have resulted in new observations and the discovery of additional information. This has resulted in revised ways of understanding how molecules are moved across the plasma membrane of cells. Hence, there is no certainty in science, only degrees of probability (likelihood) and potential for change. In light of this understanding, which of the following statements is MOST meaningful?


A) Scientific knowledge is absolute knowledge.
B) Scientific knowledge is based on current knowledge.
C) Scientific knowledge is a static and unchanging collection of facts.
D) Scientific knowledge is a rigid collection of invariable facts.

Correct Answer

verifed

verified

The caves in upstate New York,where Alan Hicks's team first noticed the deaths of thousands of bats,represent the ________ where the bats lived.


A) biosphere
B) biome
C) ecosystem
D) community

Correct Answer

verifed

verified

Terrance observes that tomato seeds sprouting in his fresh compost pile seem to grow at a faster rate than tomato seeds that he planted in potting soil that was previously used to grow house plants.Describe an experiment that he could use to test the hypothesis that tomato seeds grown in fresh compost grow faster than those grown in used potting soil.Include information about appropriate variables,treatments,and controls.

Correct Answer

verifed

verified

A large group of tomato seeds would be r...

View Answer

Match each term describing a level of biological hierarchy with its proper description.Terms may be used more than once or not at all. -The liver,a body part composed of different tissue types,is considered a(n) ________.


A) organism
B) organ
C) molecules
D) biome
E) ecosystem
F) atoms
G) biosphere

Correct Answer

verifed

verified

Read each statement and identify whether the statement is a scientific fact,a scientific theory,or an opinion.Choices may be used more than once or not at all. Dead mice within a cave where bats are infected with white-nose syndrome (WNS) have white fuzz on their noses that appears to be similar to the white fuzz seen on the noses of bats ill with WNS. A researcher hypothesizes that mice are also susceptible to WNS when they live in close contact with infected bats. To test this hypothesis, the researcher captures 50 healthy mice and randomly separates them into two groups. One group is housed in an area that contains healthy bats. The other group of mice is housed in an enclosure that contains bats that have WNS. The mice in both groups are monitored for signs of WNS. -Presence or absence of any signs of WNS in the mice.


A) independent variable
B) dependent variable
C) control group
D) treatment group

Correct Answer

verifed

verified

Showing 21 - 40 of 94

Related Exams

Show Answer