what is the meaning of following phrases..?

Just think of it like this:

The sun is a source of energy, which plants use this energy to grow...plants which when eaten by a small animal is another form of energy...so, if a rabbit eats the plant it uses energy from the plant to grow. Now, that rabbit has eaten the plant it has energy, and when the rabbit is eat by a wolf then, the wolf has consumed the energy within the rabbit, so the wolf can grow. This shows that the energy keeps going in one direction and is continuously consumed (eaten) by something bigger (higher levels of organisms in the food web).

Keep in mind that energy is neither created or destroyed and so...it is a continuous cycle. Therefore,when the wolf dies, all his energy goes back into the earth and then the cycle begins again.

Meaning that larger energy sources consume energy before smaller.......

The ocean ...into a delta that has a river......that river becomes a stream...... that stream a brook running off into a pond.

In the ocean there were many great currents. Great enough to sweep away huge ships that became compromised. A rivers current is still great not lager enough to damage a large vessel but enough force to tip a canoe and to pull a raft and it's crew overboard. A stream's current is more gentle; but on a good day it still might have the power to trip you if you were to step with out the right footing. Then there is our peaceful Lil pond where it might only be churned up by the run off, or an occasional pebble being tossed in.

let's take a forest an ecosystem.

there are many levels of oganisms, such as insects, fish and animal.

a food web is a diagram that symbolize the relationships between these levels.

finally, the flow of energy is the direction that energy goes. an example for energy is food.

a water insect eat water plants. fish then eat insect, and some animal like the otter eat the fish... that's the way things go.

Lets take an example of energy which is the chemical energy found in food... the first level would be plants, as it is the source of food for all livings.... now say some rabbits are going to eat these plants, thus the energy in plants is now in rabbits, these rabbits are going to use the energy to run, live...., the rest is stored in their body.... now assume there is a tiger that comes and eats those rabbits..... what is left in the rabbits' bodies of energy is going to be transferred to the tiger....

the question now, is all the energy that was in plants is transferred to the tiger? no... because the rabbits wasted some of that energy in moving, breathing, living......

so you see that energy drops as we go across the levels of living things.....

its like if somebody says it approximately 2 human beings it ability theyre plenty alike. form of like 2 peas on a pod like how distinctive is origional 2 of a sort is the only 2 like that. in case you be responsive to what i propose

it means that energy comes from the sun to plants. then herbavores eat them. they get the energy indirectly from the sun. carnivores eat herbivores. they get that energy indirectly too from the sun. other carnivores eat those carnivores.

but its not like the sun gets the energy fromthe plants. or the plants get energy from the herbavores.