The graph shows the changes in the size
- Slides: 9
The graph shows the changes in the size of a population of mice over a period of time. A – E refer to parts of the graph. B A The population growth reaches equilibrium between letters (1) A to B (2) D to E (3) B to C (4) C to E E C D
You and I meet each other and we need the same thing. p p a h t a h W t? x e n ens
In nature two things occur. One is cooperation. Nature is full of examples where life would not exist without cooperation. Cooperation Type Example Within a species human social groups Between species bees evolve with flowers
Competition Which ones probably compete?
COMPETITION • Individuals and populations often struggle for limited resources. • Losing this competition can mean death (or extinction!) In nature it is usually better to avoid direct competition!
How to avoid competition? 1. Move to a different habitat. 2. Occupy a different niche.
t a t i b nt ha Move e r e f f i d a to Usually not by choice!
These birds ADAPT have the to a same different HABITAT, NICHE! but different NICHES.
What will most likely occur if two different plant species compete for the same requirements in an ecosystem? (1) They will usually develop different requirements. (2) One species may adapt to a different environment. (3) One species may be eliminated from that ecosystem. (4) They will alter the environment so that they can