The build up in the child's ear prevent sound from reaching the eardrum.
Answer:
<h2>100 kcal</h2>
Explanation:
Energy transfers from autotrophs ( producers) to heterotrophs (consumers).
In this way approx 90% of the total energy is consumed by each trophic level, means only 10% energy is transferred from each tropic level.
So as given here, in primary trophic level ( producers), total energy is 10,000 kcal.
Now the 90% (9000 kcal) of this energy is consumed( like in the form of heat and respiration) in trophic level 1 and 10% (1000kcal )is transferred to the trophic level 2( first-order consumers).
And from this energy 90%(900kcal) is consumed in trophic level 2( first-order consumers) , so only 10% (100 kcal) is transferred to the trophic level 3 (second-order consumers).
Answer:
A nucleotide is made up of a sugar molecule.
Explanation:
Similarity: both burnings lead to energy production and both result in CO2 emission.
difference: food is burned in the process called cellular respiration. this process consists of a few certain stages preventing our body from heat shock.