Ch. 1 Intro to Biology

Question 1

What are the characteristics of a living organism?

Answer 1

1. order/organization
2. metabolism
3. motility/mobility
4. responsiveness
5. reproduction
6. hereditary
7. development
8. adaption to environment
9. evolution

Question 2

What are the steps of the Scientific Method?

Answer 2

1. Observation
2. Hypothesis
3. Prediction
4. Experiment
5. Gather data/ Repeat tests
6. Conclusion
7. Analyze/ Report data

Question 3

What is the order of life on earth?

Answer 3

1. Subatomic particles
2. Atom
3. Molecule
4. Organelle
5. Cell
6. Tissue
7. Organ
8. Organ System
9. Organism
10. Population
11. Community
12. Ecosystem
13. Biosphere

Question 4

Atom

Answer 4

smallest unit of a molecule

Question 5

Molecule

Answer 5

smallest unit of a compound

Question 6

Cell

Answer 6

smallest unit of life that can exist by itself

Question 7

Tissue

Answer 7

a group of cells with a common structure and function

Question 8

Organ

Answer 8

compound of a number of tissues and organized for a certain task

Question 9

Organism

Answer 9

an individual; complex individuals that contain organ systems

Question 10

2. metabolism

Answer 10

ability to acquire, store and use energy

-through photosynthesis and/or cellular respiration

Question 11

3. mobility/mobility

Answer 11

• Either we move to get what we need

- or we move what we need to us

Question 12

sessile

Answer 12

to be fixed in one place; immobile

Question 13

4. responsiveness

Answer 13

how organisms perceive and react to environment (external and internal)

Question 14

stimulus

Answer 14

change in the internal or external environment

Question 15

receptor

Answer 15

structures designed to detect changes

Question 16

5. reproduction

Answer 16

process designed to give rise to others of the same species

Question 17

sexual reproduction

Answer 17

use of gametes (sperm and egg)

Question 18

asexual reproduction

Answer 18

without the use of gametes

Question 19

6. heredity

Answer 19

the natural process by which physical characteristics are passed from parent to offspring

Question 20

genes

Answer 20

basic unit of heredity pass from parent to offspring

Question 21

DNA

Answer 21

unique molecule of inheritance that gives organism its defining characeristics

Question 22

7. development

Answer 22

ordered sequence of progressive changes that an organism goes through during its lifetime

Question 23

growth

Answer 23

adding more cells or cell size

Question 24

development

Answer 24

sequence of changes, metamorphosis

Question 25

8. adaptation to the environment

Answer 25

• designed with specific structures that enable an organism to survive and reproduce in certain environment
• controlled by genetics and/or mutations

Question 26

9. evolution

Answer 26

change occurring in a line of decent over time

Question 27

natural selection

Answer 27

found in nature; how organisms adapt to best survive

Question 28

artificial selection

Answer 28

impacted by man and man’s activities

Question 29

controlled variable

Answer 29

control group/ stays the same

Question 30

independent variable

Answer 30

experimental group/ things you change or manipulate

Question 31

dependent variable

Answer 31

measured results