Compounds that inhibit receptors by preventing the natural messenger from binding are known as antagonist.
Antagonists are molecules that will block the binding of the natural messenger at a receptor molecule. As a result, the signal which is usually produced by a receptor-messenger coupling will be inhibited. <span>An antagonist can be a drug that blocks a biological response by binding to and blocking a receptor.</span>
It's definitely not B) Founders arrived. I believe the answer may be D) Ecological Competition. Best of luck!
Answer:
C Differences among temperature, air pressure, and density
Explanation:
Classification of the atmosphere layer will be different based on the temperature, air pressure, and density. Generally, air pressure and density will go less at the higher layer, but the temperature varies greatly. Altitude and latitude define a location on earth, not the layer of atmosphere. Most weather just happens at the troposphere layer. The distance from ground level can be used as a rough estimate but not as precise criteria.
A consumer, or heterotroph, gets its energy comes from the foods it <em>consumes. </em> An example of this is a human, who gets energy from the foods it eats every day.
On the other hand a producer, or autotroph, <em>produces </em>its energy by itself.
An example of this is a plant, who uses photosynthesis to combine different things, like sunlight, carbon dioxide, and water, to make their own food, in the form of glucose, along with other byproducts.
