Answer: If we kill all the organisms in one trophic level, then transfer of energy as well as matter to next higher level will stop. It will lead to over- population at one particular level causing amongst the individuals. This would seriously disturb the food chain and can cause the collapse of an ecosystem even.
Answer:
Its A.
Explanation:
Correct on gradpoint my dooods!
Answer:
Think of mitochondria as batteries that give a power boost to their host cell. without mitochondria modern cell would die for lack of an adequate energy supply.
Answer:
malleability
Explanation:
the last two are relating to elelectricity and luster isnt something that can be hammered
Answer:
B, A fossil found in rocks from one time period
Explanation:
Fossils are used to determine the ages of rock layers. Index fossils are the most useful for this. Index fossils are of organisms that lived over a wide area. They lived for a fairly short period of time. An index fossil allows a scientist to determine the age of the rock it is in. Hope that this helps you :)
