1. Online Biology Chapter 4
4.1 - Harrison Coleman
4.2 - Joshua Joo
4.3 - Harrison Coleman
4.4 - name
2. 4.1 The Role of Climate
Climate: The average annual weather conditions in a region.
Weather: The current conditions of the atmosphere at a
particular time and place, this can include: rainfall,
temperature, humidity, winds, etc.
3. 4.1 The Role of Climate
Atmospheric gasses such as Carbon Dioxide, Methane, CFCs, Ozone, and
Nitrous Oxide trap heat inside of Earth’s atmosphere.
The heat energy from the sun passes through them into the atmosphere,
bounce off the ground, upwards, then bounce off the gasses. They
continue to do this, continually heating Earth’s surface.
These gasses that trap heat inside of Earth’s atmosphere are called:
Greenhouse Gasses
4. 4.1 The Role of Climate
The unequal heating of Earth’s surface contributes to climates.
As one moves farther away from the equator(toward the north or south
pole), one is also moving farther away from the sun.
This causes temperatures farther away from the equator to be much lower.
This also causes oceans and air to heat unequally, causing the flow of winds
and ocean current, this also affects climates.
5. 4.1 The Role of Climates
Climate is a large factor in ecosystems, and can change them in significant ways
If temperatures rise in an ecosystem, it will cause the populations that are better
adapted to heat to swell, and populations that are better adapted to colder
climates to shrink.
If rainfall decreases in an ecosystem, it will cause the populations that are
better adapted to dry conditions to swell, and populations that are better
adapted to wetter climates to shrink.
It may even cause some populations to die out altogether.
7. 4.3 Biomes
Biome: A group of land communities that covers a large area and has a certain
soil type and climate. It is possible for microclimates to exist within biomes
Microclimate: A small area where the climate differs from that of the
surrounding area.
8. 4.3 Biomes
There are ten major biomes that exist on Earth
Tropical Rainforest
Tropical Dry Forest
Tropical Savanna
Desert
Temperate Grassland
Temperate Woodland/Shrubland
Temperate Forest
9. 4.3 Biomes
Each biome consists of its own assortment of abiotic factors and typical
organisms
Different biomes are able to provide for different types of organisms, therefore
different types of organisms will evolve within them and create different types
of ecosystems
