Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
20 Cards in this Set
- Front
- Back
|
What is homeostasis? |
The process by which organisms keep their internal conditions fairly constant |
|
|
What is the term for a group of organisms of one type living in the same place? |
Population |
|
|
Biology is the study of what? |
Living things |
|
|
To observe a small living organisms, a scientist might use a(an)..... |
compound light microscope |
|
|
A controlled experiment allows the scientist to isolate and test..... |
a single variable |
|
|
Which is NOT a unit of measurement in the International System of Units, or SI? |
once |
|
|
Scientific hypotheses must be proposed in a way that way? |
enables them to be tested |
|
|
An instrument used to separate cell parts according to density is the.... |
centrifuge |
|
|
What are the three goals of science? |
* To investigate and understand nature
* To explain events in nature * To use those explanations to make useful predictions |
|
|
The ability to reproduce results is an important part of any....... |
experiment |
|
|
In the metric system, the basic unit of length is the..... |
meter |
|
|
Why do scientists publish the details of important experiments? |
* Their work can be repeated
* Their experimental procedures can be reviewed * Others can try to reproduce the results |
|
|
Basic unit of mass in the International System of Units? |
Kilogram |
|
|
What is a theory? |
A well-tested explanation that unifies a broad range of observations. |
|
|
How can hypotheses arise? |
prior knowledge, logical inferences, and imaginative guesses |
|
|
What is the name given to the idea that life could arise from nonliving matter? |
Spontaneous generation |
|
|
The _______ microscope is generally used in high-school laboratories. |
light |
|
|
List the 5 steps of the scientific method in order |
Problem, Hypothesis, Experiment, Conclusion, and Theory/Law. |
|
|
Under what conditions would you use a compound light microscope and each type of electron microscope? |
* You would use a light microscope to see living things and if you want to magnify up to 1000x.
* You would use a electron microscope to see dead things. A TEM to see 3D images/details inside and a SEM to see the surface of a nonliving object. |
|
|
What are the 8 characteristics of living things? |
* Living things are made up of units called cells.
* Living things reproduce. * Living things are based on a universal genetic code. * Living things grow and develop. * Living things obtain and use materials and energy. * Living things respond to their environment. * Living things maintain a stable internal environment. * Taken as a group, living things change over time. |
