Ecology and it's components
What is ecology?Ecology is the scientific study of how living things interact with the environment
Autotrophs are producers and producers are organisms that make their own food. They are the only organisms that can convert solar energy into chemical energy or food (organic compound). They carry out autotrophic nutrition. Plants and algae are autotrophs.
Auto: means self
Troph: means feeder
Autotrophs are self-feeders
PLANTS ARE AUTOTROPHS. (They make their own food)
ALGAE ARE AUTOTROPHS (They make their own food)Scientists estimated that about 65 - 85% of the oxygen we breathe comes from algae.
Auto: means self
Troph: means feeder
Autotrophs are self-feeders
PLANTS ARE AUTOTROPHS. (They make their own food)
ALGAE ARE AUTOTROPHS (They make their own food)Scientists estimated that about 65 - 85% of the oxygen we breathe comes from algae.
Heterotrophs are consumers and consumers are organisms that eat or obtain nutrients made by autotrophs. They depend on autotrophs for food. Horses, cows, lions and humans are heterotrophs.
Herbivores are heterotrophs that eat plants only, EX. COWS .
Carnivores are heterotrophs that eat meat only, ex. lions.
Omnivores are heterotrophs that eat both meat and plants, ex. humans.
Decomposers are organisms that break down dead organisms and return them to the soil. They recycle nutrients. Ex. of decomposers are fungi and bacteria.
Predators are organism that kill other organisms for food, ex. a lion is a predator.
Prey are organisms that are killed and eaten by other organism, ex. deers are killed and eaten by lions.
Scavengers are heterotrophs that eat dead organisms, Ex. vultures.
Biotic are living things.
Abiotic are nonliving.Niche is the role that the organism play in the environment. For example, a lion's role is "predator"Habitat is the place where organisms live.Carrying Capacity refers to the maximum number of organism a habitat can support. Once the number of organisms reaches the carrying capacity, it levels out or stop growing.
Limiting Factors refers to any biotic or abiotic aspect of the environment that affect population growth. For example, in a desert, water and temperature are abiotic limiting factors; food, prey, and predator are biotic factors that can affect population growth.
Abiotic are nonliving.Niche is the role that the organism play in the environment. For example, a lion's role is "predator"Habitat is the place where organisms live.Carrying Capacity refers to the maximum number of organism a habitat can support. Once the number of organisms reaches the carrying capacity, it levels out or stop growing.
Limiting Factors refers to any biotic or abiotic aspect of the environment that affect population growth. For example, in a desert, water and temperature are abiotic limiting factors; food, prey, and predator are biotic factors that can affect population growth.
Species Two organisms are of the same species if the can reproduce (make babies or offspring) and their babies are fertile. That is their babies can also make babies.
Population: Organisms of the same species living at the same place at the same time, for example a population of dogs, a population of cats.
Community: Different populations living at the same place and at the same time. For example, we live in a community made up of people, cats, dogs, trees, other animals and plants.
Ecosystem consist of the living and the nonliving
Ecosystem consist of the living and the nonliving
The Food Chain And The Food Web show how energy moves through the ecosystem.
Energy for this food web comes from the sun.THINK! The arrow in the food chain or the food web represents energy. The caterpillar is receiving its energy from the flowers by eating them.
What happens to the owl population if the snake population is removed from the food chain?
How is the caterpillar population affected by the removal of the snake population?
What happens to the owl population if the snake population is removed from the food chain?
How is the caterpillar population affected by the removal of the snake population?
How is the rabbit population affected if the deer population is removed from the food web?
The first organism in the food chain or the food web is always a plant because only plants can convert sunlight into food.
In the next level in the food chain or web are the herbivores because herbivores eat plants.
Carnivores are found on the third level or higher because they eat herbivores or other carnivores.
The arrow in the food chain or food web represents energy
Energy decreases as it goes through the ecosystem because energy is used for life functions and energy is lost as heat.
- If you remove an organism from the environment, the environment becomes less stable.
- The greater the biodiversity, the more stable the environment.
In the next level in the food chain or web are the herbivores because herbivores eat plants.
Carnivores are found on the third level or higher because they eat herbivores or other carnivores.
The arrow in the food chain or food web represents energy
Energy decreases as it goes through the ecosystem because energy is used for life functions and energy is lost as heat.
- If you remove an organism from the environment, the environment becomes less stable.
- The greater the biodiversity, the more stable the environment.
Questions
Why are plants at the bottom of the food pyramid?
What happens to energy as it goes through the ecosystem?
In the food web, how come no arrow is pointed toward the plant?
What is the role of decomposers?
Identify two organisms that carry out decomposition.
What does the arrow represent in the food web?
At what level of the energy pyramid would you find the largest amount of biomass?
Why are plants at the bottom of the food pyramid?
What happens to energy as it goes through the ecosystem?
In the food web, how come no arrow is pointed toward the plant?
What is the role of decomposers?
Identify two organisms that carry out decomposition.
What does the arrow represent in the food web?
At what level of the energy pyramid would you find the largest amount of biomass?
Answers
Plants are at the bottom of the food pyramid because they can convert sunlight into food for animals.
The decomposers recycle nutrients, or break down dead organisms and return them into the soil so that they can be used by plants.
Fungi and bacteria carry out decomposition
In the food web, the arrow represents energy.
The largest amount of biomass is found at the bottom of the energy pyramid.
Plants are at the bottom of the food pyramid because they can convert sunlight into food for animals.
The decomposers recycle nutrients, or break down dead organisms and return them into the soil so that they can be used by plants.
Fungi and bacteria carry out decomposition
In the food web, the arrow represents energy.
The largest amount of biomass is found at the bottom of the energy pyramid.
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