<u>Answer:</u>
Nature consists of both the organism and the environment. The relationship between them are intertwined. Organisms are mainly divided into three
a) The producers
b) The consumers
c) Decomposers
These three organisms are interlinked with each other. Without them there is no existence of the environment. The producers produce the food, the consumers consume them and the decomposers decompose and release it in the form of energy. In each cycle energy is released and absorbed. The balance in the environment is maintained by the food pyramid.
The second and third class levers both have (d) the fulcrum at one end of the lever. For class two levers the load is in the middle, and effort is at one of the sides. Third class levers have effort in the middle, and the load on one of the sides. Both meaning second and third class levers have the fulcrum on one end of the lever.
Answer:
Explanation: They both require the binding of Ligand.
Differences:
Intracellular receptor is located in cytosol. It can be found in the nucleus. It leads to slower responses related to gene transcription. They are steroids. Ligands are lipophilic, small, uncharged; diffuse through membrane and bind to receptor.
Plasma membrane receptor-
The Ligands are hydrophobic and don't have to be small and uncharged; bind only to membrane receptor. Extracellular signaling molecule binds to cell membrane receptor and triggers rapid cellular response (protein hormone)
