Characteristics of Living Things ORGANISM entire living that

Characteristics of Living Things

ORGANISM: entire living that carries out all the basic life functions.

1. Living Things MOVE! l l Animals move their whole bodies to get from one place to another. Plants move towards the sun and their roots grow down into the soil.

2) Living things are made of Cells cheek cell nerve cell red blood cell Unicellular – one cell Multicellular – many cells

3) Living things are Sensitive, they respond to the environment: l l Stimulus: ______________ Signals to which an organism reacts ________________. (smells, noises etc. ) Response: ______________ Some action or change in __________________. behavior

4) Living things perform complex chemical Activities called: Metabolism l chemical reactions that occur in living Metabolism_______________ organisms in order to maintain life ____________________ _. A. ingestion: the process of taking in nutrients _______________.

Metabolism cont…. process of breaking down complex B. digestion: __________________. materials into simpler ones (nutrients) food

Metabolism cont…. process of removing D. excretion: __________ wastes produced from metabolism _______________.

Respiration: l l l TWO TYPES: Aerobic: Use oxygen to get energy from food Anaerobic: Use something other than oxygen to get energy from food

5) Living things Grow and develop. It is limited—all organisms die Life span: ________________.

6) Living things Reproduce. l Asexual reproduction: ___________. 1 parent l 2 parents Sexual reproduction: ___________.

6 Basic Characteristics of Living Things 1 Move 2 Reproduce 3 Sensitive 4 Cells 5. Metabolism 6. Grow & develop

Needs of Living Things 1. _________ FOOD & WATER 2. _________ LIVING SPACE 3. _________ OXYGEN (or carbon dioxide!) Sunlight 4. _________ Homeostasis: Process of using stimuli and responses to keep ____________________ balance inside while the environment is changing ____________________ on the outside _____________.