Actually, external respiration is basically the transfer of gas between respiratory organs such as lungs and the outer environment. Internal respiration or tissue respiration/cellular respiration refers to a metabolic process in which oxygen is released to tissues or living cells and carbon dioxide is absorbed by the blood.
Explanation:
answered: Guest
the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.
answered: Guest
Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the