The panting responses observed in overheated birds and mammals dissipate excess heat by . The panting responses observed in overheated birds and mammals dissipate excess heat by . vasoconstriction acclimation countercurrent exchange evaporation

Evaporation

Explanation:

Panting can be defined as the condition which is used in response to the heat by the body. Whenever the body responds in order to maintain the equilibrium inside the body.

Panting is very common in the reptiles, mammals, birds which helps in the cooling of the body.

This is accomplished by the means of evaporation by which the evaporation from the internal body surface takes place.

pregnancy happens more and more

step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.