Answer:
The correct answer is A the excretory system when it sends out liquid waste as urea
Explanation:
The respiratory system play an important role in the the transport of oxygen and carbon dioxide in and out of the body thus maintaining the homeostasis of oxygen carbon dioxide ratio in our body which is very very important in maintaining the normal body physiology.
On the other hand the excretory system maintaintain homeostasis by interaction with respiratory system.Excretory system helps in the removal of waste material such as urea,ammonia and uric acid from our body through urine.The accumulation of waste products can hamper the normal body physiology.Thus excretory system also helps in maintaining the homeostasis of our body.
It would be Gravity. The force around the earth is keeping us from floatif around compared to as if we were on the moon we would be floatinf because theres no gravity
A) animal. Because all animal cells do not have a plant wall.
The thickness or thinness of the fur.
Answer:
Rigor mortis is the state of muscle to get stiff after few hours of death due to cessation of breathing and cessation of the heartbeat.
The muscle contraction occurs due to the generation of electric potential across the membrane which pumps calcium ions when receives the signal from neuron. These ion interact with muscle protein actin and myosin in the presence of adenosine triphosphate (ATP).
When a person die, its breathing and blood circulation stops and body undegoes anaerobic respiration and unable to produce efficient ATP. Due to unavailability of oxygen the myosin and actin filaments remain rigid and not able to release from the contracted state and the calcium ions unable to move out of the muscles.
Hence, the rigor mortis remain in arrested due to absence of ATP.