Biology How Life Works Chapter 1 Questions And Answers!!

BIOLOGY HOW LIFE WORKS CHAPTER 1 QUESTIONS AND
ANSWERS!!
Biology
Answers :The science of how life works.
Biologists


Answers :Scientists who study life.
Observation


Answers :The act of noticing and describing events or processes in a careful,
orderly way.
Experimentation


Answers :A disciplined and controlled way of asking and answering questions
about the world in an unbiased manner.
Hypothesis


Answers :A tentative explanation for one or more observations that makes
predictions that can be tested by experiments or additional observations.
Variable


Answers :The feature of an experiment that is changed by the experimenter from
one treatment to the next.
Test group


Answers :The experimental group that is exposed to the variable in an experiment.
Control group

, Answers :The group that is not exposed to a variable in an experiment.
Scientific method


Answers :A deliberate, careful, and unbiased way of learning about the natural
world.
Theory


Answers :A general explanation of the world supported by a large body of
experiments and observations.
4 key characteristics of living organisms


Answers :1. complexity, with precise spatial organization on several scales
2. the ability to change in response to the environment
3. the ability to reproduce
4. the capacity to evolve
First Law of Thermodynamics


Answers :Energy can neither be created nor destroyed; it can only be transformed
from one form into another.
Second Law of Thermodynamics


Answers :The number of possible positions and motions of molecules in the
universe tends to increase.
Entropy


Answers :A quantitative measure of disorder or randomness, symbolized by S.