Lesson 1
All the living things and nonliving things in a given area
What is a ecosystem?
The amount of water covering the Earth? a percentage
What is 70%?
Nitrogen is a important part of this molecule that contains genetic material.
What is DNA?
2nd most abundant gas in the atmosphere.
What is Oxygen?
This organism eats other consumers.
What is a carnivore?
Factor that is all the living things.
What is biotic?
3 processes involved in the water cycle.
What is evaporation, condensation and precipitation?
This breakdowns nitrogen into compounds plants can use.
What is bacteria?
During this process oxygen is released as a by-product.
What is photosynthesis?
This moves in a flowing pattern.
What is energy?
The source of almost all energy on Earth.
What is the Sun?
Clouds form because of this?
What is condensation?
The process that changes atmospheric nitrogen into compounds that are usable by living things.
What is nitrogen fixation?
All organisms contain this.
What is carbon?
The process that plants make food with light energy.
What is photosynthesis?
This provides water and nutrients for the plants we eat.
What is the soil?
The process that water is released from leaves and stems of plants?
What is transpiration?
Farmers may put this on their fields to help the nitrogen cycle.
What is animal waste or manure.
The effect of carbon dioxide forming a protective layer in the atmosphere.
What is the greenhouse effect?
These eat dead organisms?
What are detritivores?
3 things that describe climate.
What is temperature, moisture and wind?
The by-product of cellular respiration.
What is water vapor or carbon dioxide?
This can change the nitrogen in the atmosphere into compounds that will fall to the ground.
What is lightning?
The plant that contributes more than 50% of the oxygen in the atmosphere.
What is phytoplankton?
This process makes food without light energy.
What is chemosynthesis?