Ecosystems
Does an ecosystem have living things?
Yes
A population of cats went from 1 to 1. What type of change?
No Change. Stablity
This organism grows from the ground and provides food. It is ...?
Plant
A population is charted on a graph. The arrow is pointing down. This mean it experienced a ...?
Decrease / death
A healthy ecosystem has alot of biodiversity. What does biodiversity mean?
A lot of variety / different species
Are rocks in an ecosystem?
Yes they are non living things
A population went from 3 to 10. What kind of change?
Increase
What is an organism that only eats plants?
A population is charted on a graph. The arrow is pointing up. This mean it experienced a ...?
Increase / birth
If you knew there was pollution in a lake, why should you avoid swimming in it?
Harmful bacteria / germs
What hot object in the sky is apart of an ecosystem?
The Sun
A population of foxes in 1999 was 10. In 2000, the population became 14. What change?
Increase
This organism hunts other animals and eats only meat.
Carnivore.
A population is charted on a graph. The arrow is a straight line. This mean it experienced a ...?
Stability / no change
What is the largest ecosystem covering the Earth?
Ocean
The sun is a producer of .....?
Heat and light
How do population increase?
Birth
A group of organisms that can successfully mate with each other and reproduce.
Species
In a chart, there are 15 zebras. 2 of them died and no new births. What type of change did the zebra population experience?
13, decrease
What molluscs helps filter clean water in the ocean?
Oyster
ocean river lake pond
When a population experiences no change and the birth and death levels are the same. We call that...?
Stablity
An elephant is a biotic factor. A tree is a biotic factor. A bunny rabbit is a biotic factor. What does biotic mean?
Living
A population of fish increased from 10 to 20, however there was an accident and 15 died in the last few days. What kind of population change did it experience?
Death / decrease
Ecosystems such as the ocean and forest help filter water. What does "filter" mean?
clean water