BIO 101 - Chapter 1

Question 1

Five characteristics of life

Answer 1

Life is organized
Life requires energy
Life maintains internal constancy
Life reproduces itself, grows, and develops
Life evolves

Question 2

What is Homeostatis?

Answer 2

The ability of an organism to maintain a stable internal environment despite changes in the external environment.

Question 3

What is adaptation?

Answer 3

Inherited traits that permits an organism to survive and reproduce.

Question 4

What is a cell?

Answer 4

The basic unit of life

Question 5

What are Atoms?

Answer 5

The smallest decomposition of all living organisms. They bond together to form molecules.

Question 6

What are organelles?

Answer 6

They are molecules bonded together to form compartments that carry out special functions in a cell

Question 7

What is an Ecosystem?

Answer 7

Includes to both living and non living organisms in an area.

Question 8

What is Biosphere?

Answer 8

Refers to all parts of the planet that can support life.

Question 9

Emergent Properties

Answer 9

New complex functions resulting from the interactions of different components of an organism.

Question 10

Metabolism

Answer 10

biochemical reaction of a cell or organism using energy

Question 11

Producers (Autotrophs)

Answer 11

Organisms that make their own food by extracting energy and nutrients from non-living sources.

Question 12

Consumers

Answer 12

Obtain energy and nutrients by eating other organisms (dead or living).

Question 13

Decomposers

Answer 13

Heterotrophs that obtain energy and nutrients from wastes or dead organisms.

Question 14

Asexual Reproduction

Answer 14

Genetic Information comes from only one parent.

Question 15

Sexual reproduction

Answer 15

Genetic Information comes from two parents

Question 16

Natural selection

Answer 16

Enhanced reproductive success of certain individuals of a population based on inherited characteristics.

Question 17

Evolution

Answer 17

Change in the genetic makeup of a population over multiple generations.

Question 18

Taxonomy

Answer 18

Biological science of naming and classifying organisms.

Question 19

Genus

Answer 19

Taxonomic category that groups closely related species.

Question 20

Three domains under which species fall into

Answer 20

Bacteria
Archaea
Eukarya

Question 21

Domain Bacteria and Archaea

Answer 21

Superficially similar to one another

Single-celled prokaryotes (their DNA are free in the cell and not confined to an organelle called a nucleus).

Question 22

Domain Eukarya

Answer 22

Contain all species of eukaryotes - unicellular or multicellular organisms whose cells contain a nucleus.

Question 23

Kingdoms of domain Eukarya

Answer 23

Animalia, fungi,and plantae

Question 24

Protista

Answer 24

Eukaryotic organism that is not an animal, fungus, or a plant

Question 25

Scientific method

Answer 25

A general way of using evidence to answer questions and test ideas

Question 26

Hypothesis

Answer 26

A testable, tentative explanation based on prior knowledge.

Question 27

What does the scientific method consists of?

Answer 27

Observations and questions Hypothesis Data collection Analysis and peer review

Question 28

Experiment

Answer 28

An investigation carried in controlled conditions

Question 29

Variable

Answer 29

Changeable element in an experiment

Question 30

Standardized variable

Answer 30

Anything the investigator in a scientific experiment holds constant for all subjects.

Question 31

Experimental control

Answer 31

A normal group in an experiment that provides basis for comparison

Question 32

Placebo

Answer 32

An inert substance that resembles the treatment given to the experimental group (stand-in for a drug being tested).

Question 33

Double-blind design

Answer 33

Research in which neither the researchers or the participants knew who received the actual treatment or who received the placebo.

Question 34

Theory

Answer 34

Well supported scientific explanation Typically broader in scope than hypothesis Reflects broader agreement Predictive power