Organism Interactions
A bird catches a worm to eat. What type of interaction is this? (Organism-Organism or Organism-Environment?)
Organism-Organism
What TWO things does food provide for organisms?
Energy and building materials (growth)
Green Plants --> Grasshopper --> Spider --> Owl
A hot summer causes the spider population to decrease greatly. What will happen to the grasshopper population?
It will INCREASE because its has fewer predators.
Describe something that can cause a population to change.
Answers may vary.
All animals and plants have specific structures that help them to _______.
Survive
A bird build its nest in a tree. What type of interaction is this? (Organism-organism or Organism-environment?)
Organism-Environment
For something to be considered food, it must contain at least one of what three things?
Fats, proteins, carbohydrates (starch or sugar)
Grass --> Mouse --> Hawk
What do the arrows represent in this food chain?
The direction that the energy moves.
What is an example of a BIOTIC factor that can cause a population to change?
Other organisms, reproduction, food
A chameleon is able to change color depending on its background. What is the purpose of this structure?
To hide from predators; camouflage.
What are the four main interaction types that can affect a population?
Food, Other Organisms, Reproduction, Environment.
Explain why juice IS considered a food.
It contains sugar, which is a carbohydrate.
What is the ORIGINAL SOURCE of energy for EVERY organism?
The sun
What is an example of an ABIOTIC factor that can cause a population to change?
Environment
What type of structures does a giraffe have to help it survive?
A long neck and tongue to reach to the top of tree branches.
Food, Other Organisms, Reproduction, Environment.
Choose one interaction type above and write a question about what could have caused a snake population to decrease.
Answers will vary.
You put a drop of iodine on a potato and it turns BLACK/NAVY. What does this mean?
It means that the potato contains STARCH, and is therefore FOOD.
A producer is eliminated from a food web after a severe drought. Which organisms would be affected and how do you know?
A. Primary Consumers B. Secondary Consumers C. Tertiary Consumers D. All organisms
All organisms because every organism in a food web is connected through direct and indirect relationships.
Explain how one organism being removed from an ecosystem can impact all other organisms in the ecosystem.
All organisms depend on each other through direct and indirect relationships. When one organism is removed, the rest will either increase or decrease depending on it's relationship with the removed population.
A hawk has a sharp beak and talons. Based on this structure, what can we assume a hawk eats? How do you know?
Small mammals, snakes, fish.
It can use its beak and talons to rip apart its prey to eat.