"diver's reflex" is a response to diving in many aquatic mammals and also occurs in humans upon submersion in water. it is characterized by physiological changes that decrease oxygen consumption, such as a slowed heart rate. which region of the heart would be directly affected by the nervous system to allow for the slowing of heart rate?

The answer is Sinoatrial node.

Explanation:

The sinoatrial node are the group of cells in the wall of right atrium of the heart.

The animals tend to initiate diving response when diving, this is the reduction in heart rate, which triggered respiratory arrest response and stimulation of facial code receptors.

This is the physiological adaptation allowing animals to cope with lack of oxygen.

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !