Topic 4 Ecology Flashcards
1
Q
- Ecology is the study of the distribution and the abundance of organisms and their interactions with other organisms and their physical environment.
A
Note
2
Q
- Factors are nonliving. These include resources such as temperature, climate, light, water availability, and topology
A
Abiotic
3
Q
a. Photic Zone
b. Aphotic Zone
A
Abiotic Zones
4
Q
- This is the zone in water where light penetrates. All aquatic photosynthesis occurs in this zone
A
a. Photic Zone
5
Q
- This zone in water has almost no light penetration. Only animals and other heterotrophs exist here
A
b. Aphotic Zone
6
Q
- Factors are all living things that directly or indirectly influence the life of the organism. Abiotic and biotic factors are responsible for limiting the geographic distribution of species.
A
Biotic
7
Q
- A group of individuals of the same species living in the same area
A
Population
8
Q
- A group of populations living in the same area
A
Community
9
Q
- Describes interrelationships between organisms in a community and their physical environment
A
Ecosystem
10
Q
- Combination of all the ecosystems of the earth. The biosphere includes the atmosphere, hydrosphere, lithosphere, and geosphere as well.
A
Biosphere
11
Q
- Type of place where an organism usually lives. The habitat includes all the other organisms present as well as the physical and chemical environment
A
Habitat
12
Q
- This describes all the biotic and abiotic resources in the environment used by an organism. When an organism is said to occupy a niche, certain resources are consumed or certain qualities of the environment are changed (exploited) in some way by the presence of the organism. No two species can occupy the same niche indefinitely. When two organisms occupy the same niche, they compete for food and mate at the same time of the year
A
Niche
