LESSON 1: CHARACTERISTICS OF LIFE
7th Grade
Starting on Page 8 in your text
book
ALL LIVING THINGS ARE…
-organized
-grow and develop
-reproduce
-respond
-maintain certain internal conditions
-use energy
*Things that have all of these things = ORGANISMS
HOW DO THESE LIVING THINGS FIT THE 6
CRITERION?
Example 1: Polar Bear
Example 2: Human
BREAK OUT TIME: SMALL GROUP WORK
DIRECTIONS:
1. Count off 1-6
1. Organization (10)
2. Growth and Development (10-11)
3. Reproduction (11)
4. Responses to Stimuli (12)
5. Homeostasis (13)
6. Energy (14)
2. Meet with your group
3. Read your section
4. Come up with the main points/most important information from your section
5. Present to the class
***EVERYONE MUST SAY AT LEAST 1 THING WHEN PRESENTING!!!***
HOMEWORK
Page 16
Numbers:
2, 3, 4, 8, 11
TH
6
GRADE
Lesson 1:
What Are Animals?
Page 278 in your book
ANIMAL CHARACTERISTICS
1. All animals = multicellular
2. Collagen (a protein) holds animal cells together
3. Animal cells = nucleus
4. Animals = only cells that have nerve impulses
5. Most animals = muscle cells
6. Energy by eating other organisms
7. Formation: sperm and egg cell join, zygote (fertilized egg)
made, zygote divides into more cells = embryo, more cell
division, baby organism
FORMATION PROCESS
SYMMETRY
Bilateral: a body plan in which an organism can be divided into 2
parts that are nearly mirror images of each other
-Examples: human, frog, gecko
Radial: a body plan which can be divided into 2 parts that are
nearly mirror images of each other anywhere through its central
axis
-Example: sand dollar
Asymmetry: a body plan that cannot be divided into any two parts
that are nearly mirror images
-Example: sponge
BREAK OUT TIME: MINI-LAB
1. Mini-Lab: Animal Symmetry
2. Homework:
Page 284
Numbers 2, 3, 4, 7, and 8