Slides Pt 2

Question 1

Limiting Factors

Answer 1

Factors that limit indefinite growth or indefinite reactions from occuring

What are limiting factors of making pancakes?

Question 2

Limiting Factors for Populations include anything that can cause a decrease in population growth

Answer 2

The maximum population size Of the species that an environment can Sub stain

Overshooting compasity

Is the population overshoots The carrying capacity in the environment The result is a population crash

Question 3

Biodiversity:

how many different species can live in an ecosystem

Answer 3

Does diversity = stability?

Does stability = diversity?

Question 4

Ecological Succession

Answer 4

Ecosystems are constantly changing in response to natural and human disturbances.
As an ecosystem changes, older inhabitants gradually die out and new organisms move in, causing further changes in the community.
Ecological Succession- series of predictable changes that occurs in a community over time

Question 5

Types of Succession

Answer 5

Primary Succession- succession that occurs on surfaces where no soil exists
Examples: after volcanic eruptions or on bare rock exposed after glaciers melt

Secondary Succession- disturbance of some kind changes an existing community without removing the soil
Examples: land cleared and plowed for farming is abandoned or wildfire burns woodlands
The process of succession in a given area usually proceed in certain specific and predictable stages
Climax community- mature, stable community that does not undergo further succession (doesn’t really exist because all communities undergo change)

Question 6

Succession Summary

Answer 6

Succession stops when a climax community is reached

Pioneers: build, stabilize and enrich the soil

Successive producers take advantage of abiotic conditions and further enrich and deepen the soil.

A climax community takes over and favors its own survival

Question 7

Trophic Levels

Answer 7

Classifying organisms by what they eat

Question 8

Autotrophs or Producers (Primary Producers)

Answer 8

make their own food by photosynthesis
-or-
chemosynthesis

Question 9

Heterotrophs are Consumers

Answer 9

Organisms that must get their food from other organisms.

Question 10

Herbivore: An organism that only eats producers (plants).

Answer 10

Omnivore: Consumer that eats both producers and other consumers.

Question 11

Scavenger/Decomposers

Answer 11

Scavenger:video 2 Consumers that eat dead things they find
Example: vulture

Another word for scavenger/decomposer is detrivore

Because they consume detritus

Examples of detrivores: 
Dung beetles
Ants
Worms
bacteria

Decomposer: Small consumers that digest dead producers or consumers.
Example: Bacteria & fungus

Question 12

role of organism within an ecosystem
No organism can occupy the same niche at the same place and time.

What’s your niche? Where do you fit in? Who do you affect and how?

Answer 12

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