A mutation in a bacterial gene which codes for the enzyme which cross-links peptidoglycan with the result that the altered enzyme continues to cross-link the peptidoglycan but no longer recognizes penicillin. True/False

TRUE

Explanation:

These kind of mutations in the bacterial genome will lead to the phenomenon of bacterial resistance. As described, the peptidoglycans continues to be cross linked as usual but the over all new resulting cell wall has developed a resistance against the antibiotic penicillin due to non recognition enhancement by the bacterial resistance genes.

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.

they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

explanation: