Your answer would be that they both combine and create an L wave
trees do not fix N2 from air they fix oxygen with the help of N2 fixing bacteria . so trees do not fix N2
Answer:
Vì thế sinh vật nhân thực được phân chia thành 3 nhóm chủ yếu là dị dưỡng (Animalia, Fungi, Protozoa) và 2 nhóm chủ yếu là quang hợp, (Plantae, bao gồm cả tảo đỏ, tảo lục và Chromista.
Answer: In the stomach, oesophagus and intestines.
Explanation: Parastalsis is an involuntary wave-like movement of the bolus(food) and chyme by muscle contractions in the digestive tract. It occurs in the oesophagus, stomach and intestines. This happens by relaxation of circular smooth muscles allowing the bolus to pass and contract again to propel it forward. It goes on like that until it is secreted in the anus. Parastalsis is not limited to the digestive tract but also takes place in other hollow tubes in the body.