Chapter 2.1. The science Of biology

Question 1

What is biology?

Answer 1

The study of life

Question 2

What is another name for biology?

Answer 2

Life science

Question 3

What is a key aspect of biology?

Answer 3

The study of one living thing always involves studying other living things.

Question 4

What does an apple, a bacteria and a bear all have in common?

Answer 4

They are all living things.

Question 5

Define organism.

Answer 5

1. Things that have all the characteristics of life, made of one or more cells
2. Individual living thing

Question 6

What are the characteristics of a living thing?

Answer 6

1. Organization (cells)
2. Reproduce
3. Growth
4. Development
5. Obtain/use energy
6. Respond to stimuli
7. Homeostasis
8. Adapt

Question 7

What is homeostasis?

Answer 7

The ability to maintain stable internal environment

Question 8

Life can be studied at what levels? (From largest to smallest)

Answer 8

1. Biosphere
2. Ecosystem
3. Community
4. Population
5. Organism
6. Groups of cells
7. Cell
8. Molecule

Question 9

Define biosphere.

Answer 9

Part of earth that contains all ecosystms

Question 10

Define ecosystem.

Answer 10

Community and its nonliving environment

Question 11

Define community.

Answer 11

Populations that live in defined areas

Question 12

Define population.

Answer 12

Group of organisms of one type that live in the same area

Question 13

Define groups of cells.

Answer 13

Tissues, organs, and organ systems

Question 14

Define cell.

Answer 14

Smallest functional unit of life

Question 15

Define molecule.

Answer 15

Groups of atoms, smallest unit of compounds

Question 16

What does human depend on?

Answer 16

The existence of all living things on earth— wood, cotton, food, etc.