cell theory

Structural organization grow and develop sensitivity and irritability reproduction coordination regulation homeostasis adaptability change and evolution metabolism

Characteristics of life

Structural organization

Organisms are made of cells

Grow and develop

Living things grow from within by

mitosis/cell division while non-living things

increase in size by accumulation of

substances.

Sensitivity and irritability

Organisms react to changes in their

environment (a stimulus).

Irritability

the ability to recognize that

something in its surroundings has

changed and respond to it quickly.

Reproduction

The process where organisms passed to

their offspring the hereditary molecules they

possess.

Sexual

two sex cells required (sperm and

egg)

Asexual

only one parent cell is needed

Coordination regulation and homeostasis

All organisms have regulatory mechanisms

that coordinate the functions of the various

parts of the organisms.

Homeostasis

a relatively stable internal

environment (within a certain range)

Adaptability change and evolution

To increase the likelihood of an organism’s survival organisms react to changes in their environment

Individual adaptation

A longer term response to an environmental change

Evolution

Changes in a population over time

Metabolism

Organism’s gain and store energy in the

chemical bonds in the nutrients they take in.

Bacteria archaea eukarya

Three domains of life

Biosphere

the worldwide ecosystem.

Ecosystem

communities that interact with one

another in a particular place.

Communities

populations of different organisms

interacting with each other in a particular place.

Population

a group of individual organisms in a

particular place.

Organism

an independent living unit.

Organ system

many organs that perform a particular

function.

Organ

many tissues that perform a particular

function.

Tissue

many cells that perform a particular function.

Cell

simplest unit that shows characteristics of life.

Molecules

Specific arrangements of atoms

Atoms

Fundamental units of matter

Socrates

father of Philosophy

Encouraged his students to examine their beliefs

Plato

• Founder the academy of Athens

Aristotle

• Founder the Lyceum of Athens (First school of Medicine and Bachelor of Laws)
  He built a greenhouse in his school where he hired Theophrastus as his caretaker.

Theophrastus

Father of bottany

-wrote the bork the Enquiry into Plants".

This book is arranged into a system whereby plants are classified according to their modes of generation, their localities, their sizes, and according to their practical uses such as foods, juices, herbs, etc

Pliny

describe plants

Wrote the book "Naturalis Historie"