Show:
vocabulary
plants
true or false?
feeding relationships
Staying alive
100

What is an ecosystem

An ecosystem is a community of living things (like plants, animals, and microorganisms) interacting with each other and their non-living environment (like air, water, and soil). It can be as small as a pond or as big as a forest.

100
Photosynthesis has two reactants
What are carbon dioxide and water?
100
climate change is NOT a cause of extinction
What is false
100
Which organism is a carnivore? bacteria, grass, wolf, or worm
wolf
100
Which is an example of parasitism?
a bird eating insects that bother an ox
a deer tick sucking blood from a dog's ear
a remora eating scraps from a shark's meal

What is a deer tick sucking blood from a dog's ear
200

The roles of plants in an ecosystem

Plants: They produce oxygen and food through photosynthesis and are the base of the food chain.

200
The products of photosynthesis
What are sugar and oxygen?
200
A volcanic eruption is a natural cause for an ecosystem to change
What is true
200
Which organism is not a decomposer? earthworm, fungus, tapeworm, slug
tapeworm
200

How do humans impact ecosystems

  • Negative impacts: Pollution, deforestation, and urbanization can harm habitats and species. Overfishing and hunting can reduce animal populations.
  • Positive impacts: Conservation efforts, recycling, and creating protected areas can help restore ecosystems and protect biodiversity.
300

The roles of  animals in an ecosystem 


Animals: They help pollinate plants, spread seeds, and control populations of other species. They can be herbivores (plant-eaters), carnivores (meat-eaters), or omnivores (both).

300

During this process, light energy is absorbed and used to make food

What is photosynthesis?
300
There are 4 symbiotic relationship types
What is false
300
Which two organisms would you expect to compete with each other? birds and insects, deer and fish,  hyenas and cheetahs, or raccoons and sea turtles
hyenas and cheetahs
300

What are  food webs?

Food Web: A food web is a more complex diagram that shows how many food chains are connected. It illustrates all the different ways that organisms are linked through eating and being eaten.

400

 Types of ecosystems

Oceans,Deserts,Forests

400
Cellular respiration has these reactants
What are sugar and oxygen?
400
an animal that only eats one type of food is at risk of becoming extinct if that food is taken away.
What is true
400
A spider builds a web in a field. The web catches grasshoppers, which the spider eats. What kind of relationship does the spider have with the grasshopper?
What is a predator-prey relationship
400

What are food chains

Food Chain: A food chain shows how energy and nutrients move from one organism to another in a straight line. For example, a simple food chain might be: grass → rabbit → fox.

500

What are producers,

Producers: These are usually plants that make their own food through photosynthesis. They are the foundation of the food chain.

500
What percentage of energy is passed from the producers to the next level of consumers in an energy pyramid?
What is 10%
500
Different populations in a community often compete for the same resources
true
500
What is the order in which energy flows in an ecosystem?
sun->producer->consumer->decomposer
500
Name five abiotic factors
What is water, sunlight, rocks, soil, and air?