Post on 04-Aug-2020
Needs of Living Things Warm-up
What did Robert Hooke find, that all living things are composed of?
Compound Microscope
First Microscope
What are living things like?
Living things are organized
Cells
Tissues
Organs
Living things respond
Respond to a stimulus = causes a reaction
homeostasis = balance
Living things use energy
Living things grow and develop
Living things reproduce
What are the basic needs of all living things?
A place to live (shelter, habitat)
Raw materials
Water
Proteins
Fats
Sugars
Gas
Plants need CO2 and animals need O2
What are the needs of plants?
Light
Water
Gas CO2
What are the needs of animals?
Water
Shelter
Food
Air (Gas 02)
http://www.youtube.com/watch?v=j2fRMhYP5n8
Why can’t all organisms survive everywhere?
Animals/Plants are designed to live in a specific
ecosystem
http://www.youtube.com/watch?v=GUY_-LK_lOc
How do changes in the Environment affect the organisms that live there?
The number of animals will increase or decrease.
http://www.youtube.com/watch?v=o_RBHfjZsUQ
How do organisms obtain the materials they need?
Plants
Special parts of the cell absorb the
light energy Chloroplasts (Chlorophyll)
Other parts of the cell take in
carbon dioxide
The roots and leaves absorb water.
Together this produces sugar
Photosynthesis
CO2 + Water = Glucose + Oxygen
What animals eat
Animals
Herbivores - Eat plants
Carnivores - Eat animals
Omnivores - Both
Shelter and water must be available in the ecosystem.