Download Early Animal life

Early
Animal life.
Fossils
Many prehistoric plant and animal fossils have been
found in sedimentary rock, particles of rock that have
broken off from larger pieces of rock and have been
carried away and made even smaller by the grinding
of ice, water or wind. The fossilized remains of
prehistoric plants and animals have also been founds
trapped in ice, tar, peat and even in amber, which is
hardened tree sap.
Palaeontology, they study of fossils, began in England
in the late 17th century.
The analysis of fossils and rocks helps
palaeontologists understand the history and
developments of earth’s life forms and major
geographic events.
Living and non-living
Living things
- Living things are called organisms
- All organisms can reproduce and metabolize
- If something is alive, it can do most of the following: Mrs Ferg
Move on its own
Respire (breathe)
Sense things in its surroundings or environment
Feed or nourish itself
Excrete
Reproduce itself
Grow
Main differences between plants and animals:
Characteristic
Plants
Animals
Where does it get Energy
from:
Food from photosynthesis
Food from eating other
organisms
How does it move:
Usually cannot move itself
Usually can move itself
Does it have Sense organs:
Limited ability to sense
things
Developed ability to sense
things
Gas released:
Mostly oxygen
Carbon dioxide
What is its Cell structure:
Cellulose cell walls,
chloroplasts and vacuoles
No cellulose cell walls,
chloroplasts or vacuoles