Slides pt 1

Question 1

Ecology

Answer 1

Ecology is the study of how living and nonliving things interact.

Question 2

Ecologists divide everything into 2 categories.

Answer 2

Biotic: Biotic: Anything that is living (or was once living)

Abiotic: Abiotic: Anything nonliving.

Question 3

Factors

Answer 3

Biotic; bacteria, fungi, animals

Abiotic: air, ph, minerals

Question 4

Habitat: The resources available for living things in an area.

Answer 4

Food
Water
Shelter
Space

Question 5

Levels of Organization

Answer 5

Individual, population, community, eco system, biome, biosphere

Populations: Two or more organisms of the same species that are available for mating.

Community: Two or more populations of organisms living in the same area.

Ecosystem: the area where there is interaction between the biotic & abiotic factors.

Biome: Large areas on the earth with similar abiotic factors.

Biosphere: The area on the planet where life exists.

Question 6

Because biome abiotic factors are similar the biotic factors are similar.

Answer 6

Plants

Animals

Question 7

Relationships

Answer 7

Relationships 
Competition
Predation (including herbivory)
Symbiosis
Mutualism
Commensalism
Parasitism

Question 8

Community Interactions

Answer 8

Community interactions, such as competition, predation, and various forms of symbiosis, can powerfully affect an ecosystem.

Question 9

Competition

Answer 9

Occurs when organisms of the same or different species attempt to use an ecological resource in the same place at the same time
Resource- any necessity of life
Competitive Exclusion Principle- no two species can occupy the same niche in the same habitat at the same time

Question 10

Competitive exclusion principal

Answer 10

Organisms thrive when they are grown in separate cultures. However, when placed in the same container one species will out compete the other. One will thrive while the other dies off.

2 species competing for same resource can’t coexist indefinitely

Question 11

Predation (video 2)

Answer 11

Interaction in which one organism captures and feeds on another organism

Question 12

Symbiosis

Answer 12

Any relationship in which two species live closely together
Means “living together”
Three main classes of symbiosis:
Mutualism- both species benefit
Commensalism- one benefits and the other is neither helped nor harmed
Parasitism- one organism lives on or inside another organism and harms it

Question 13

Mutualism

Answer 13

Example of Mutualism: The ant cares for the aphids and protects them from predators. The aphids produce a sweet liquid that the ant drinks.

Question 14

Commensalism

Answer 14

Example of Commensalism: The orchid benefits from its perch in the tree as it absorbs water and minerals from rainwater and runoff, but the tree is not affected.

Question 15

Parasitism

Answer 15

Example of Parasitism: A flea feeds on the blood of its host, which can be harmed by diseases the flea carries.