Bio 103 Exam 1 Chapter 1-4

List the 4 living things in order of size

1. Cells 2. Tissues 3. Organs 4. Organ Systems

Define a cell.

Smallest most basic form of life

What are tissues made up of?

Similar cells

What are organs made up of?

Tissues

Define organ systems

Organs working together

Life cannot be maintained without what?

Materials and Energy

What is energy?

The capacity to do work

What is Metabolism

All chemical reactions occurring in the cell

What is the ultimate source of energy for earth?

The Sun

What does photosynthesis do?

Transforms solar energy into chemical energy of food

What is Homeostasis?

The maintenance of internal conditions within certain boundaries. May be behavioral

Name the 4 characteristics of living things

1. Acquire energy and materials

2. Respond

3. Reproduce and develop

4. Have Adaptions

The ability to respond often results in what?

Movement

What are two ways that living things reproduce?

1. Bateria simply split in two

2. Union of egg and sperm produces embryo

In all organisms, what are genes made up of?

DNA (Deoxyribonucleic acid)

What is DNA's primary function?

To store information (like a blueprint)

In terms of living things, what do we mean by adaptions?

Modifications that make organisms suited their way of life

What is evolution?

The process by which species have changed and diversified since life arose.

What is taxonomy?

The discipline of naming and classifying organisms according to certain rules including the presumed evolutionary relationship.

Name the 8 taxonomic categories of classifications in order of Most inclusive to least inclusive

1. Domain

2. Kingdom

3. Phylum

4. Class

5. Order

6. Family

7. Genus

8. Species