*Unit 1 Part 1: Scientific Method and Characteristics of Life

Question 1

Characteristics of life are what _____ do.

Answer 1

living things

Question 2

Characteristic #1 of living things is that living things are made of _____.

Answer 2

one or more cells

Question 3

Unicellular organisms consist of _____.

Answer 3

a single cell

Question 4

Multicellular organisms are made of _____.

Answer 4

many cells

Question 5

Characteristic #2 of living things is that living things display _____.

Answer 5

organization

Question 6

Each structure in an organism has a specific _____.

Answer 6

function/job

Question 7

Characteristic #3 of living things is that they _____ and _____.

Answer 7

grow; develop

Question 8

All organisms start off as _____.

Answer 8

one cell

Question 9

Characteristic #4 of living things is that living things _____.

Answer 9

reproduce

Question 10

All living things pass on their _____ to offspring.

Answer 10

DNA

Question 11

A _____ is a group of organisms that can mate and produce fertile offspring.

Answer 11

species

Question 12

Characteristic #5 of living things is that living things respond to _____.

Answer 12

stimuli

Question 13

Stimulus

Answer 13

Anything that is part of either an organism’s external or internal environment that causes a reaction

Question 14

Response is an organism’s reaction to _____.

Answer 14

stimulus

Question 15

Response to stimuli does not have to be _____.

Answer 15

movement

Question 16

Characteristic #6 of living things is that they require _____.

Answer 16

energy

Question 17

_____ capture energy from the sun to produce their own food.

Answer 17

Autotrophs

Question 18

_____ obtain energy from consuming other organisms.

Answer 18

Heterotrophs

Question 19

Characteristic #7 of living things is that living things maintain _____.

Answer 19

homeostasis

Question 20

Homeostasis

Answer 20

The regulation of an organism’s internal conditions to maintain balance or normal conditions

Question 21

List an example of homeostasis

Answer 21

~Sweat to maintain cool temperature
~Dogs panting

Question 22

Characteristic #8 of living things is that living things _____/_____ over time.

Answer 22

adapt; evolve

Question 23

Adaptation

Answer 23

A chracteristic that helps an organism survive in its environment

Question 24

Do all living things require oxygen?

Answer 24

No, not all living things require energy.

Question 25

Many _____ organisms can survive without oxygen.

Answer 25

anaerobic

Question 26

What is the mnemonic device used to remember the characteristics of life?

Answer 26

HOGRACER

Question 27

What does HOGRACER stand for?

Answer 27

H: Homeostasis
O: Organization
G: Growth and Development
R: Reproduction
A: Adaptation
C: Cells
E: Energy is required
R: Response to stimulus