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When a horse gallops all of the _______ energy ....
chemical energy from its food is transferred into motion energy.
The initial source for all energy in a food chain is
the sun.
The basic needs of plants include air, water, ______________, and light.
nutrients
The process by which plants use energy from the Sun to produce their own food is called
photosynthesis
Which part of the plant has the main function of collecting water?
Roots
What kind of energy does an organism receive from eating food?
chemical
What happens to energy within a system?
it changes form
Vascular plants have tubes running through the roots, stems and leaves which carry __________ and __________ to all of the plants
water, nutrients
Which part of the plant has the main function of making food?
Leaves
Which part of the plant has the main function of supporting the plant?
Stem
What will most likely happen if an animal consumes more food than it needs for the work it will do?
The extra chemical energy will be stored in its body.
Name a biotic factor in a pond ecosystem?
bacteria
Decreased snowfall results in availability of less water and moisture in a tundra biome. How will this affect the biome?
decrease the vegetation
Plants use sunlight, nutrients from the soil, water, and _____________ to make the food they need.
Carbon dioxide
Which part of the plant has the main function of collecting light?
Leaves
Long-distance runners often eat special snacks partway through their run. What is the most likely reason for this?
Much of the chemical energy in their bodies has been used up and must be replaced for them to continue working.
Give an example of the relationship between an abiotic factor and a biotic factor?
Mrs. Pipes will verify that you are correct
Bees pollinate plants and at the same time receive food in the form of nectar and pollen. What relationship exists between the bees and plants?
mutualism
True or False: Plants release oxygen during photosynthesis.
True
Which part of the plant has the main function of holding the plant in place?
Roots
What marine ecosystem would have the most species diversity?
near the equator
A cactus has a very thick stem, a shallow root system, and needles that cover the entire stem. Why are these modifications important for the cactus to survive in the desert?
The thick stem holds water and is protected by the needles. The roots are shallow because they need to absorb water quickly when it rains.
A long dry season in a rainforest produced below average rainfall, and some plant populations declined afterwards. Why did the change in climate affect plant growth in the region?
The dry season reduced the amount of water in the ground.
What three things are needed for photosynthesis to take place?
sunlight, carbon dioxide, and water
What are the four basic needs of plants?
Light
Water
Air
Nutrients