Definitions
Plants
Systems
Organisms
Energy Pyramid
Food Chains & Webs
Random
200
What is a way of supplying water to an area of land?
Irrigation
200
What is the supporting structure that connects roots and leaves and carries water and nutrients between them?
Stem
200
What is a series of events in which one organism eats another and obtains energy?
Food Chain
200
What is the source of all energy?
Sun
200
How much energy is transferred from 1 level to the next in an energy pyramid?
10%
200
What is an animal that is hunted and killed by another for food?
Prey
200
Which is the closest planet to the sun?
Mercury
250
What is a place where an organism lives?
Habitat
250
What part of a plant absorbs water and minerals from the ground and anchors plant in ground?
Roots
250
What is a system of interlocking and interdependent food chains?
Food Web
250
What are organisms that make their own food?
Producers
250
Which level has the most energy available?
1st level-producers
250
What does a frog eat? 
Grasshopper
250
The two holes of the nose are called?
Nostrils
300
What is a community of organisms and the environment in which they live?
Ecosystem
300
What is the process that plants use to make sugar?
Photosynthesis
300
What is the organism at the top of an ecosystem?
Apex Predator
300
What are organisms that eat living producers and/or other consumers for food?
Consumers
300
List 2 ways that organisms use up the energy they consume.
moving, eating, water, finding food, growing, breathing, heart beating, keeping warm
300
Where do phytoplankton get their energy?
Sunlight
300
Which nutrient plays an essential role in muscle-building?
Protein
350
What is group of individuals of the same species that live in the same area?
Population
350
What 3 things do plants need to grow?
sunlight, water, carbon dioxide
350
What percent amount of energy moved from the first level to the third level?
1%
350
What are organisms that break down the dead remains of other organisms?
Decomposers
350
What are the "steps" in an energy pyramid called?
Trophic Levels
350
What organism(s) do tuna eat?
Mackerel and Herring
350
Plants need which gas to perform photosynthesis?
Carbon Dioxide
400
What is a unit used to measure the amount of energy contained in foods?
Calorie
400
What are small openings on the underside of a leaf through which oxygen and carbon dioxide can move?
Stomata
400
What is a diagram that shows the amount of energy that moves from one feeding level to another in a food web?
Energy Pyramid
400
What is an organism that feeds on the dead bodies of other organisms?
Scavenger
400
What do tertiary consumers eat?
Secondary Consumers
400
What organisms eat mice?
Fox, Hawk, Owl
400
Which scientist proposed the three laws of motion?
Isaac Newton