They are called neurotransmitters
Answer:
<em>The correct option is B) A rat scurries past, and a python strikes at it.</em>
Explanation:
A stimulus can be described as any thing or event which is detected as a signal and a response is generated by the body of the organism for that signal. In the scenario discussed in option B)The passing of the rat acts as a signal for the python. In response to the signal, the python generates a response by striking the rat. Hence, it is an example of a stimulus and the accompanying response of an organism.
Answer: The correct answer is -
D) A ---> B + C + energy.
Explanation:
Catabolic reactions can be described as one of the two types of metabolic reaction (other being anabolic) which occur within cell when complex organic molecules are broken down to form simpler, smaller molecules.
For example - Respiration, which involves glucose breakdown in order to form carbon dioxide and water. Generally they are type of hydrolysis reactions, which include water to break bonds present in complex molecules.
Large amount of energy is also released during these reactions.
Thus, option D) shows catabolic reaction.
