Unit 1: Diversity and Unity

Question 1

What are the 7 characteristics of life?

Answer 1

Cells and organization
Energy use and metabolism
Environmental response
Regulation and homeostasis
Growth and development
Reproduction
Biological Evolution

Question 2

What is cell theory?

Answer 2

All living things are composed of cells.
All cells come from preexisting cells.
Cells are the smallest unit of life.

Question 3

Match the letter with the correct number.

A: Schleiden/Schwann
B: Hooke
C: Leeuwenhoek

1: All living things are composed of cells.
2: Refined magnification power
3: Discovered microscope

Answer 3

A:1
B:3
C:2

Question 4

True or False:

In the hierarchical organization of life, the organelle level is above cellular.

Answer 4

False

Question 5

True or False:

In the hierarchical organization of life, the community level is above the population level.

Answer 5

True

Question 6

What are the three domains of life and their defining characteristics?

Answer 6

Bacteria: unicellular prokaryote
Archae: unicelular prokaryote
Euarya: unicellular to multicellular eukaryotes