Bell Work 829 Give me 3 characteristics of
Bell Work 8/29 Give me 3 characteristics of yourself that make you a living creature. 3 things that make me living are…
Collect Today The Martian and the Car Assigned Levels of Organization Circles Late Lab Safety One Pager (-30%)
Test 1 Tomorrow! Lab Safety Scientific Method- Know the steps in order! Characteristics of Life Levels of organization- Know them in order!
Page 4: Characteristics of Life
Standard B. 10 C – Analyze the levels of organization in biological systems and relate the levels to each other and to the whole system Essential Question How do the levels of organization show an increase in complexity?
The Study of Life I. Introduction to Biology Bios = "life" Biology Logos = "study of"
The Characteristics of Life • Cells – the smallest unit of organisms that carry on the functions life. • Made of one or more cells – unicellular or multicellular
Displays Organization - cell, tissue, organ system, organism
Growth – increase in size, adding cells and new structures Development – Natural changes that occur during growth
Reproduction – organisms produce new individuals
Responds to stimuli Stimulus – anything that an organism responds to, either internal or external environment esponse – the reaction of an organism to a stimulus (critical to survival)
Requires energy - to fuel their life functions. They get their energy from food or they use light energy to make their food
Maintains Homeostasis – The regulation of an organism’s internal environment to maintain life.
Thought question: Let’s list all the characteristics of life that fire possesses.
If Transformers were real, would they be considered alive? Why or why not?
If vampires were real, would they be considered living?
Zombies are often referred to as the “living dead”. If they were real, would they be considered alive? Why or why not?
CUPS Put the cups in order from smallest to largest
Levels of Organization
Atom- Smallest object that retains the properties of an element Ex: Carbon, Hydrogen, Nitrogen Atoms held together by a chemical bond makes up a Molecule
Molecules together will form organelles And a group of organelles will make up a…. . cell
Multicellular Organization Similar cells work together to form Tissues. Lots of Muscle cells together… muscle tissue Muscle Cell
Multicellular Organization Different tissues work together to form organs.
Multicellular Organization Different Organs work together to form organ Systems. The heart is an organ made of cardiac muscle tissue… when the heart works with the arteries and veins it creates the circulatory system
Multicellular Organization All the Organ Systems work together to form a living Organism.
A. Levels of Biological Organization • Organism – a living thing made up of one or more cells. • Unicellular – an organism composed of one cell, can carry on all the activities necessary for life • Multicellular – An organism composed of many cells, different cells carry out different jobs (division of labor),
Levels of organization in multicellular organism Atom Molecule Organelle Cell Tissue Organ System Organism
Levels of Biological Organization . . atoms molecules cells tissues organ systems organism
RECAP
Atom Carbon
Molecule Water
Organelle Nucleus
Cell Bacteria
Tissue Muscle
Organ Brain
Organ System Excretory
Organism A Buffalo Moose
Lab Safety Answers!
HW: Analogy (Circles Handout)
- Slides: 40