Lesson 1.1 What’s Important ?

Biology is the study of living thingscomes from the Greek root bios- which means “life” and the Greek suffix -logy which means “the study of”.

Biology 1.1 What’s Important ?Biology is the study of living thingscomes from the Greek root bios- which means “life” and the Greek suffix -logy which means “the study of”.

•Organism – scientific term for a living thing.

•Habitat – region where the organism usually lives.

•Organism – scientific term for a living thing.•Habitat – region where the organism usually lives.

4 Major fields of biology botany – study of plants

zoology – study of animals

4 Major fields of biology botany – study of plantszoology – study of animals

human anatomy and physiology - study of physical structures and the functions of the human body.

4 Major fields of biology botany – study of plantszoology – study of animalshuman anatomy and physiology - study of physical structures and

the functions of the human body.

ecology – the study of interactions between organisms and their environment and each other.

ecology – the study of interactions between organisms and their environment and each other.

Food chain – a sequence of organisms related to one another as prey and predator.

Food chain – a sequence of organisms related to one another as prey and predator.

Parts of the food chain: 1. producers• usually a photosynthetic organism (make own food from sunlight) •are at the base of the food chain•All energy comes from them •usually green - chlorophyll

2.Consumer –derives nutrients and energy from consuming other organisms.

Includes:• herbivores or primary

consumers – they consume plants

2. ConsumersIncludes:

• carnivores or secondary consumers - they consume other animals that once consumed plants.

2. ConsumersIncludes

• omnivores - who can be primary or secondary consumers

- eat plants or other animals.

• Omnivores who can be primary or secondary consumers- eat plants or other animals.

3. Decomposers - are organisms that breakdown dead or decaying organisms.

Includes:

We will begin our course study of biology in the field of botany.

Reasons for studying botany:

1. many medications are derived from plants

2. important to industry (lumber, paper, clothing,acetate, rayon, etc)

3. all food eaten by man comes directly or indirectly from plants