The Characteristics of Living Things Mod B U

The Characteristics of Living Things Mod. B U. 1. L. 1 There are special characteristics that all living organisms share:

Question! n Write down 4 living and 4 non -living things you interact with everyday. n Then View Untd. Streaming Video on Living Things

All living things are … 1. Made up of cells

What is a cell? n n n A cell is the smallest unit of organisms that carry on the functions of life Parts : nucleus, cell membrane , organelles, cytoplasm Unicellular – one cell Multicellular – many cells Specialization- to have special functions

Cells ….

2. Made up of Chemicals n DNA – Deoxyribonucleic acid Carries the genetic code and instructions for all functions n Proteins, Carbohydrates, Fats & Oils, Water, Oxygen, Carbon dioxide, n Water ~ 70% of the body mass

3. Living things Reproduce n n Make new organisms, offspring, like themselves 2 types of reproduction: n n Asexual – A single parent Sexual – Two parents

4. Living things grow and develop n n Growth n Unicellular organisms – cell gets larger n Multicellular organisms – number of cells increase Development – Organism grows and passes through different stages of maturity

5. Living things use energy Metabolism the sum of all processes in an organism – for life to go on. n Living things take in or make their own food/source of energy n

6. Living things sense and respond to changes in their environment. n Stimulus n Response n Adjust Ø Homeostasis n Adapt Ø to changes Adaptation, Evolution?

7. Living things can move n Some organisms move more than others n n Plant movement may not be visible to th naked eye, but can turn leave towards sunlight, open a flower, etc Animals can move rapidly

8. Living things have life-spans n Organisms stop living or divide into new organisms (daughters). - Is why reproduction and adaptation are so important!

Some Life Spans TYPE MAX LIFE SPAN Adult mayfly 1 -3 days Marigold 1 yr Mouse 3 yrs Guppy 5 yrs Coyote 15 yrs Giant spider 20 yrs Toad 36 yrs Lobster 50 yrs Crocodile 60 yrs TYPE MAX LIFE SPAN Sea anemone 70 yrs Elephant 77 yrs Blue whale 80 yrs Tortoise 100 -150 yrs Human 120 yrs Giant sequoia 4000 yrs Creosote bush 11, 700 yrs

A Study Aid n Following directions; n Create a Foldable for The Characteristics of Living Things

HMWK n #1 Submit completed foldable

Homework #2 Compare and Contrast a Dog and a Car, OR A Human and a Computer (Tell how they are similar and how they are different in terms of the 8 characteristics of living things. Organize your thoughts in a table

Compare & Contrast Table Compare (Similarities) Each similarity must be true for both sides DOG CAR Contrast (Differences) Each difference must match on both sides

Homework #3 n Complete all L. 1 Text Questions up to page …