Transcript Chapter 4 Study Guide - Downtown Magnets High School

Chapter 4 Study Guide
Ecosystems and Communities
1. What are biotic factors and abiotic factors?
•Biotic: all living factors;
•Abiotic: all non living factors
2. Which biotic factors affect the size of
organism populations?
• Predators, birds, trees, bacteria…interaction
3. Several species of warblers can live in the
same spruce tree ONLY because they (circle):
a. have different habitats within the tree. b.
eat different foods within the tree. c. occupy
different niches within the tree. d. can find
different temperatures within the tree
• c.
4. Where does the oceanic zone begin?
• At the edge of the continental shelf
5. What does climate produce?
• A wide range of environmental conditions that
shapes communities.
6. What type of chemistry determines aquatic
ecosystems?
• Amount of salts, nutrients, and oxygen dissolved
in the water.
7. Which of these two biomes have the least
amount of rainfall: tropical rain forest, temperate
grassland, tropical savanna, tropical dry forest,
tundra, desert, boreal forest, temperate
woodland shrubland
• tundra and desert
8. Name one difference between
primary and secondary succession:
• Secondary succession begins on
soil, and primary succession begins
on newly exposed surfaces
9. Give an example of a place with a
microclimate:
• A forested park in a desert city
10.Latitude and _________________
cause _______ main climate zones on
Earth.
• angle of heating, three
11. If an insect feeds on a flower’s nectar,
what type of symbiosis is this and why?
•Mutualism, because the flower provides the
insect with food, and the insect pollinates
the flower.
12.What factor(s) can influence continual change
in an ecosystem?
• Further disturbances, long-term climate
changes, introduction of
nonnative species
13.Name three things that unequal heating of
the Earth’s surface causes.
• wind and ocean currents, winds that
transport heat, effects on Earth’s climate
regions.
14.Which of these is NOT an adaptation that
organisms have for living in flowing water
(circle): a. hooks b. streamlined bodies
c. suckers d. tentacles
• d. tentacles
• 15. How can competition between species be
reduced if they share the same habitat?
• they can occupy different niches
16. What is the difference between a niche and
habitat?
• a niche is an organism’s place in the food web
(occupation) and a habitat is its address
17. What slows the loss of heat to space?
• atmospheric gases