Ecosystem 1
How much of the prey's energy gets turned into consumer tissue?
10%
What is the bottom level of an energy pyramid?
Producers
What is a fight for limited resources called?
Competition
What are two things that help organisms avoid competition?
Habitat and niche
What are the 2 types of adaptations?
Explain
Structural - internal or external physical structures
Behavioral - behavior
Name 4 abiotic factors plants need to survive.
1. soil
2. sunlight
3. air
4. water
Rabbit --- Fox
Which direction should the arrow point?
---> right
<--- left
What does this represent?
---> right
Food chain
What is a biotic limiting factor?
The amount of available food
What is a limiting factor?
Any resource that restricts the growth of populations
A gazelle is able to run at speeds of up to 80km/hr.
Why do they have such adaptation?
To avoid predators
What do you call an animal that only eats producers?
What do you call an animal that only eats other animals?
What do you call an animal that eats both producers and other animals?
Herbivore
Carnivore
Omnivore
In an ecosystem the number of producers is _______ than the number of herbivores. Similarly, there are many more herbivores than ___________.
greater; carnivores
What is reliance of organisms on other organisms for their survival?
A relationship between two or more kinds of organisms that last over time is?
Interdependence
Symbiosis
How can two birds that live in the same habitat and eat the same food avoid competition?
This means they have different _________.
By being active at different times of day
Niches
What is nocturnal?
Why are many desert animals nocturnal?
Active at night
To avoid the heat during the day
How big is an ecosystem?
It doesn't matter, as long as it has both biotic and abiotic factors
Why are predators important in food webs and food chains?
They limit the size of prey populations
What does a biotic and abiotic factor determine?
What is the definition?
Carrying capacity
The greatest number of individuals within a population that an ecosystem can support
What are the common abiotic limiting factors? (7)
Water
Temperature
Weather
Soil Type
Space to grow
Shelter
Sunlight
What is mimicry?
Give an example.
Resemblance to an unpleasant animal to avoid predators or resemblance to things that lure prey
ex) coral snake & king snake
What happens when top carnivores are removed from a food chain?
Prey populations are no longer controlled
When prey populations increase in numbers, more producers are required to supply them with energy
Soon there would be less producers to support these organisms
What is a red tide and how do they occur?
Red tide is a sudden explosive growth of single-celled algae in coastal areas
Red tides can occur when nutrient-rich deep water gets brought to the surface after a storm. With so many nutrients in the water, the algae keep reproducing.
What are the 3 types of symbiotic relationships?
Explain each.
Commensalism - one benefits, nothing happens to the other
Parasitism - one benefits, the other is harmed
Give an example of each symbiotic relationship.
Mutualism: Pollinatiors & Flowering plant, etc.
Commensalism: Remoras & Rays, etc.
Parasitism: Ticks & Dogs
What kinds of adapations does an owl have? (4)
1. Excellent hearing
2. Keen eyesight
3. Muscular and silent wing
4. Sharp talons/claws