Slides in this set
The first living things needed to be molecules that
could copy themselves so offspring could be
Some scientists think these molecules formed on Earth
due to some extreme conditions at the time.
Other scientists believe these molecules came from
elsewhere in the universe via a meteorite / asteroid.…read more
This is the ways in which living things are different
from each other.
Variation can be caused by :
Genes (passes from parents to offspring)
Environment (changes during the organisms lifetime)
Most variations are due to BOTH
(height, weight, skin colour)…read more