One of these is not a requirement of living things. Choose that trait.
|B)||ability to think|
|C)||maintenance of internal constancy|
|D)||response to the environment|
Presently, humans define death by ____________.
|A)||the point at which breathing stops|
|B)||no discernible heartbeat|
|C)||lack of brain activity|
|D)||no pulse in the extremities|
True or false. At most levels, and in all but certain types of organisms, structure is closely related to function.
Which of the following statements best describes “emergent properties”?
|A)||The properties of individual molecules which perform a specific chemical function.|
|B)||The function of a group of molecules is more than the abilities of a single molecule in the group.|
|C)||The magical interaction of molecules in water.|
|D)||All of these statements are examples of “emergent properties”.|
True or false. Living organisms require some form of energy in order to survive, reproduce, and maintain their cellular organization.
Organisms that obtain their energy by eating other organisms, living or dead, are called _____________.
|D)||Both “B” and “C” are correct.|
True or false. Homeostasis is defined as the maintenance of the cell’s external environment such that optimal growth and acquisition of food (the processes of life) can occur.
The accumulation of adaptive traits in a population of individuals is a result of ____________.
All of the organisms found on earth, regardless of the strange and exotic places in which they are found, comprise the earth’s ____________.
The term “Animalia” refers to the ______________ to which numerous organisms belong.
True or false. DNA’s ability to mutate provides the variation upon which natural selection may act.
What is a “theory” in biology?
|A)||an educated guess|
|B)||similar to a hypothesis|
|C)||a systematically-organized body of knowledge that applies to a variety of situations|
|D)||the usual conclusion of an experiment|
The process of answering questions through observation, reasoning, prediction, and testing is called ______________?
|A)||the scientific method|
True or false. A hypothesis is always set up as a non-testable statement.
True or false. An experiment can disprove the hypothesis but can never prove it.
True or false. It is always possible to have a large sample from which to draw data.
To eliminate alternative explanations, a good experiment must include a _________________.
The term used to describe an experimental control used in medicinal trials in which the test drug is replaced by an inactive substance is called a __________.
An experimental trial in which neither researchers nor subjects know whether the test substance is real or is a placebo is called __________.
|A)||an experimental variable|
|C)||an experimental control|
True or false. Scientific discoveries do not depend on our willingness to accept unusual ideas.