Environmental change tition and selection

Can be Caused by natural processes or Human Activities

​Environmental change can be SHORT term

OR

LONG TERM

Algae are aquatic producers

(like plants of the water)

Producers - Algae

Primary consumers: Freshwater snails, and Mayfly

Secondary consumers: trout and Bank swallow

Tertiary consumer: Grizzly bear

Fresh Water

​Which of these will compete for Algae?

Traits may become more common through natural selection

For example...

Adapting to the change

Those birds with long legs have an advantage. They get to find food more easily, therefore they are healthy to reproduce.

What about short-legged birds?

​

Long legged birds win!

​Scenario

A new predator loves to eat bugs. It is much easier to see bright bugs than dark bugs. DESCRIBE how natural selection could affect this trait in the bug population over time.

​​Dark bugs

VS

​​Bright Bugs

​Answer in your notes

Water, sunlight, temp

Abiotic Factor

Land, Shelter,

​​Abiotic Factor

For mating rights

​​Biotic Factor

For the food

​​Biotic Factor

​You can use google to answer the questions if you're stuck