Clusters of cells located near the carotid artery in the neck sense the amount of oxygen in the blood. if the level is too low, these arteries send signals to the brain that result in an increased breathing rate, which brings more oxygen into the body. this is an example of which of the following? negative feedback to amplify small signals negative feedback to maintain homeostasis positive feedback to maintain homeostasis positive feedback to amplify small signals

ask your friends for what they got then copy it down if you don't have any friends which is fine than google it or pay the teacher

the oldest known insects are believed to live around 400 millions ago as suggested by the fossil records.   some plants having woody stems also evolved during this time.

after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago. the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.

the major split in tetrapods first occurred 340 million years ago branching off from amphibians.

363 million years ago when the carboniferous period began the insects started roaming on land and taking flights, following which the four limbed tetrapods adapted in the terrestrial habitat.

this would be called the responsiveness