Ch. 1

Question 1

What properties do all living things share?

Answer 1

Have ordered structures, uses energy, reproduces, grows/develops, responds to stimuli, evolves

Question 1

Biosphere

Answer 1

All life on earth in all environments

Question 1

Ecosystem

Answer 1

All living and nonliving parts in an area

Question 1

Community

Answer 1

Populations of organisms in an ecosystem

Question 2

Population

Answer 2

Group of species in an area

Question 2

Organ system

Answer 2

Group of organs that do one body function

Question 2

Organism

Answer 2

Individual living being

Question 3

Organ

Answer 3

Made up of tissues to do a task in the body

Question 4

Tissue

Answer 4

Group of similar cells that perform a task

Question 5

Cell

Answer 5

Basic unit of life, has life’s properties

Question 6

Organelle

Answer 6

Part of a cell with a specific function

Question 7

Macromolecule

Answer 7

Large, biologically important molecules in cells

Question 8

Molecule

Answer 8

Group of atoms

Question 9

Atom

Answer 9

Smallest unit of matter

Question 10

Autotroph

Answer 10

Organism that makes it’s own food

Question 11

Heterotroph

Answer 11

Organism that obtains it’s food from other organisms

Question 12

Homostasis

Answer 12

Maintaining a stable internal environment

Question 13

Set points

Answer 13

Preset conditions in a system that are disrupted and reestablished

Question 14

Recepters

Answer 14

Parts of a system that sense change

Question 15

Effectors

Answer 15

Part of a system that creates a physical change in order to return to set point conditions

Question 16

Negative feedback loop

Answer 16

Process where normal function is changed, an action reverses the change, so the system is returned to it’s original status

Question 17

Positive feedback loop

Answer 17

Process where disruption in a system is from a normal change, and another traumatic event must reverse the change and return the system to it’s original status

Question 18

Hypothesis

Answer 18

Proposed explanation of an observation

Question 19

Theory

Answer 19

Widely accepted explanation backed up with evidence

Question 20

Negative control group

Answer 20

Control group where no change is expected

Question 21

Positive control

Answer 21

Control where a change is expected

Question 22

Blind experiment

Answer 22

Where some information is withheld from participants

Question 23

Double-blind experiment

Answer 23

Where information is withheld from participants and the researcher, best way to remove bias