Endorphins are brain chemicals
known as neurotransmitters which are released when the body feels a certain
amount of stress and pain. Endorphins alter the communication of pain in the
body by interacting with the opiate receptors and blocking the synapse so that signals
cannot be sent to the brain in order to reduce an individual perception of pain.
Answer:
An anabolic reaction can be described as a reaction in which reactants join to form products. In the process of photosynthesis, carbon dioxide and water molecules join to build up glucose molecules hence, it is an anabolic reaction.
The catabolic reaction can be described as a reaction in which large molecules are broken down into smaller substances. In cellular respiration, glucose is broken down into carbon dioxide and water. Hence, cellular respiration is a catabolic reaction.
The equations of photosynthesis and cellular respiration are exactly opposite to one another. Hence, holding a connection. The products of photosynthesis are the reactants of cellular respiration and vice versa.
The organisms which appeared on earth first was bacteria.
<u>Explanation:</u>
- The first-ever living organism on Earth was a bacteria known as cyanobacteria. It is believed by scientists that it first formed around 3 billion years ago.
- When the Earth was first formed, it was inhospitable for a long time until 3.8 billion years ago approximately, the core cooled down and the level of oxygen had risen. This, along with photosynthesis resulted in the formation of Cyanobacteria.
- These organisms were capable of carrying out the process of photosynthesis by which they prepared their food. These were known as common ancestors. All the living organisms thereafter are known to be their descendants.
The answer to your question is A. Higher latitudes receive less radiation due to the curvature of the Earth.
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