Factors (Limiting, Abiotic and Biotic)
The term used to describe all living things in an ecosystem
Biotic factors
What organisms use cellular respiration?
All living things
Give an example of an ecosystem
Desert, Tundra, Rainforest, Estuary...
Given an example of a producer
Tree, flower, grass...
How are food chains and food webs different?
Food webs are composed of multiple food chains and show many of the relationships within an ecosystem
Name examples of 3 abiotic factors you might find in your environment
sun, wind, soil, water, rocks, ...
What are the three inputs of photosynthesis
Sunlight (energy), water, and carbon dioxide
Which prey adaptation helped the dark peppered moth survive during the Industrial Revolution in England?
Camouflage
Identify the main difference between a primary consumer and a secondary consumer
Primary consumers only eat producers
Secondary consumers eat producers and primary consumers
What type of organism (producer, primary consumer, or secondary consumer) is always at the beginning of the food chain?
Producer
What is the definition of a limiting factor in an ecosystem?
It is a resource that limits the size of a population
Name the two outputs of photosynthesis
Oxygen and sugar
Name 3 of the 5 characteristics of life
1. Reproduction
2. Composed of cells
3. Responds to stimulus
4. Grows and develops
5. Uses energy
Which of the following is NOT an example of a secondary consumer:
a. Lion
b. Rabbit
c. Wolf
d. Andres
b. Rabbit
What do the arrows represent in a food chain or web?
The flow and direction of energy between organisms
Water, shelter, food
Identify how humans rely on photosynthesis
Humans require oxygen in order to survive, it is made by photosynthesis
Using the food web on the board, which two organisms are in direct competition with the grasshopper for grains?
Mice and birds
Classify each of the following as a producer, primary consumer, or secondary consumer
- Sunflower
- Lion
- Cow
- Sarah
Sunflower: producer
Lion: secondary consumer
Cow: primary consumer
Sarah: primary consumer
What would be a possible impact on the owl population if there was a sudden decrease in the grasshopper population?
Grass --> Grasshopper --> Mouse --> Owl
The owl population would likely decrease
When a population grows bigger than the [BLANK] , a limiting factor will cause organisms to die or leave, causing a decrease
Hint: two word answer
Carrying Capacity
What's the relationship between photosynthesis and cellular respiration?
they are inverses (opposites of one another)
50 units of energy
Describe the difference between a producer and a consumer, using the concept of energy.
producers get their energy from the sun
consumers get their energy from other living organisms
Examine the food web on the board - if the grasshopper population were to suddenly decrease what would happen to the following two populations:
- mice and grass
- the grass population would increase
- the mice population would decrease