Energy Transfer
True or False: When a rabbit eats grass, energy moves from the rabbit to the grass
False
What role does grass play in the food chain?
producer
Name one living and nonliving component of a coral reef ecosystem
living- coral and fish. nonliving - water, rocks, sunlight
What two substances do plants take in to make sugar?
Carbon dioxide and water
A plant contains 5 calories per gram. How many grams are needed to get 100 calories?
20 grams
True or False: When a wolf eats a door, the deep transfers energy to the wolf.
true
in the chair leaf - beetle - bird, what is the beetle's role?
prey and consumer
If fish that eat algae are removed from a reef, what might happen to the coral?
What gas do plants release during photosynthesis?
oxygen
A rabbit needs 300 calories per day. If grass has 3 calories per gram, how many grams must it eat?
100 grams.
A deer eats plants. Later, a mountain lion eats the deep. Describe how energy moved through these organisms.
sun - plants- deer - mountain lion
In the chain leaf - beetle - bird what is the birds role?
predator and consumer
Why might overfishing affect many organisms in a reef ecosystem?
It disrupts the food web and energy flow
A plant growing in more sunlight grows faster. Why?
More sunlight allows more photosynthesis and more sugar production.
Two identical plants are grown. One receives direct sunlight. One does not. Which will likely grow faster? Why?
The one in sunlight because photosynthesis increases.
If insects eat leaves and birds eat insects, who transfers energy to the bird?
The insect.
Source of energy. To photosynthesis in plants and then to what eats the plants and so on
If a rabbit population decreases, what might happen to foxes that eat them?
Fox population might decrease as they have less food.
If a plant's mass increases, where did most of that mass come from?
Carbon dioxide (from air)
If a plant absorbs 4 grams of carbon dioxide and 2 grams of water and produces 3 grams of oxygen, how much sugar did it produce?
3 grams
Explain wny energy does not return to the sun in a food chain.
Energy flows in one direction and is lost as heat. It does not cycle back.
Three different bird species live in the same tree but eat slightly different foods. why does this help them survive?
They reduce competition by filling different niches.
Why can two similar animals live in different habitats?
They have different needs (food, shelter, space) different niches.
Explain how the weight of a plant can show that matter moved into it.
If a plant gains mass, matter like carbon dioxide and water entered and became part of the plant.
Complete the matter movement: sunlight-plant-insect-bird-?
predator (cat or hawk etc.)