View
232
Download
3
Category
Tags:
Preview:
Citation preview
Warm Up
• What is biology?
What is Biology?
What is it?
• Is the study of living things
• All living things are called organisms
Characteristics of Life
Living things are very organized and contain many complex chemical substances
Living things are made up of one or more cells
Unicellular-
1 cell
Multicellular- more than 1 cell
Living things have
a definite form and
limited size
Living things have a limited life span
Gastrotrich (a minute aquatic animal)3 day life span
Giant tortoise 177 year life span
Living things evolve or change over long periods of time. This is characteristic of groups of organisms, not of individuals.
Life Processes- determine living v. non-living
1. Living things move.
2. Living things are able to reproduce.
3. Living things are sensitive and respond to changes in the environment.
Does one rotten apple spoil the whole bunch?
Ethylene
4. Living things need nutrition
Make their food
5. Excrete waste.
Examples: Sweat, Examples: Sweat, urine, carbon dioxideurine, carbon dioxide
6. Living things respire (plants and animals use the oxygen in the air to turn food into energy)
7. Living things grow and develop.
Use the first letter from each process to help you remember
them.MoveReproduceSensitiveNutritionExcreteRespireGrow
They spell MRS. NERG
This is MRS NERG !
Can you remember what each of the letters in her name stands for ?
Is it alive? Virus
Recommended