Abiotic vs Biotic
Non-living elements in an ecosystem. (Temperature, Water, Sunlight, Soil)
What is an abiotic factor?
Living or once living organisms in an ecosystem. (Animals, plants, fungi, and bacteria)
What are biotic factors?
Smallest level of ecosystem organization.
What is an organism?
An organism that makes its own sugar and oxygen using sunlight
producer
Explain how organisms compete for abiotic factors in an ecosystem.
Organisms compete for abiotic factors by growing taller to get more sunlight. Adapt to living with less water, as cacti adapt to living in nutrient-poor soils with few but more hardy plants. Temperature- organisms either migrate away from or to different climates.
Cheeseburger (what factor)
What is a biotic factor?
Bees and flowers. (factor)
What are biotic factors.
All the individuals of a given species are in an area at a given time.
What is a population?
An organism that eats another organism to get nutrients
consumer
What happens to abiotic factors when biotic population increases?
When biotic populations increase, the abiotic factors are less available for other living things. For example, many plants growing in the same area will decrease the amount.
A dead fish
Biotic factor
the salinity in water
abiotic factor
The populations of organisms of different species in a given area.
What is a community?
A single path of energy flow in an ecosystem
food chain
Two biotic factors which could survive in a desert ecosystem and explain which abiotic factor they would depend on and why
Desert hardy plants that can survive in poor soil, lizards, snakes, ect.
abiotic- water, extreme temps, lack of water ect
List 2 biotic and 2 abiotic factors in a forest ecosystem.
Biotic-plants animals ect
Abiotic- sun, soil, temp ect
4 abiotic factors in an ecosystem
What is sun, temperature, water, air, soil-rocks
All the living (biotic) and nonliving (abiotic) factors in an area.
What is an ecosystem?
Multiple interconnected food chains form this.
food web
Two plants are growing near each other in a forest ecosystem. Explain how they would compete for several abiotic factors in order to survive.
Two plants would compete for access to soil nutrients, sunlight, and water.
The word ecosystem refers to.
What is biotic and abiotic factors in an environment?
List 3 biotic and abiotic interactions in a forest ecosystem.
Fish need pond water.
Plants need sunlight.
Animals need oxygen.
List the levels of organization in an ecosystem from largest to smallest.
1. Community
2. Population
3. Organism
What amount of energy is retained in each higher trophic level?
Only 10 percent
There is a long drought in a grassland ecosystem. Predict how this change in an abiotic factor will impact a single organism, a population, and community level.
An organism experiencing a drought might die from lack of water or food
A population will decrease in individuals die off.
This will disrupt relationships within a community. Consumers that feed on the organism will have less food. ??Living things eaten by the organism may increase in size if they are not harmed by the conditions.