characteristics of living things 1/17/13 starter: 1/17/13 practice: list what things you believe are...

Characteristics of Living Things

1/17/13

Starter:

1/17/13

Practice:List what things you believe are characteristics of living things

Application/Connection:

Paste Notes here when Done

Exit:Where do these plant parts fit in

the levels of organization?Guard cell, xylem, leaf, plant

31 32Characteristics of Living Things

Number from 1 to 7

January 17, 2013

AGENDA

7.12 F recognize that according to cell theory al organisms are composed of cells and cells carry on similar functions such as extracting energy from food to sustain life.

1 Starter2. Practice3. Vocabulary

Table of Contents

Date Lecture/ Activity/ Lab Page1/9 Ecological Succession 23-241/10 Semester Exam Review 25-261/15 Cell Vocabulary 27-281/16 Ecosystems at School 29-301/17 Characteristics of Living things 31-

32

Characteristics of Living Things

1/17/13

Starter:

1/17/13

Practice:List what things you believe are characteristics of living things

Application/Connection:

Paste Notes here when Done

Exit:Where do these plant parts fit in

the levels of organization?Guard cell, xylem, leaf, plant

31 32Characteristics of Living Things

Number from 1 to 7

Characteristics of Living Things

What is biology?

The study of living things

All living things share certain characteristics

1. Made of 1 or more cells

A. Unicellular (one cell)

- ex. Bacteria

B. Multicellular (many cells)

- ex. Animals, plants

2. Need energy to survive

A. Autotrophs - get energy from sun

B. Heterotrophs - get energy by consuming nutrients from their environment

3. Respond to stimuli in their environment

A. Stimuli - factors in the environment that living things react to

(ex. Light, temperature, sound, etc.)

4. All living things reproduce

A. Sexual - two sex cells required (sperm and egg)

B. Asexual - only one parent cell is needed

5. Grow and develop

A. Each cell divides to make new cells (cell division) – results in growth

B. Some cells become specialized and perform different jobs than others (differentiation)

6. Maintain homeostasis

A. Homeostasis – a relatively stable internal environment (within a certain range)

- (ex. Human body temperature (approximately 98.6 degrees F))

7. Have a universal genetic code

A. All living things have DNA

B. DNA passes on genetic information from one generation to the next

8. Adapt and evolve over time

A. Evolution - gradual change in a population of organisms over time

Individuals DO NOT evolve

Characteristics of Living Things

1/17/13

Starter:

1/17/13

Practice:List what things you believe are characteristics of living things

Application/Connection:

Paste Notes here when Done

Exit:Where do these plant parts fit in

the levels of organization?Guard cell, xylem, leaf, plant

31 32Characteristics of Living Things