If an insect goes and sits on the open mouth of the pitcher plant, the flap of the mouth closes shut. This response of pitcher plant is known as ________ .
The correct option is
D
stimulus
Any change in the surroundings that causes the organisms to respond to them is known as a 'stimulus'. In this case, the insect is sitting on the open mouth of the pitcher plant, so touch is a stimulus here. It evokes the flap of the pitcher plant to shut, which is the response of the plant.
Acclimatization is defined as a process where an organism adjusts its behavior or physiology in response to changes in its environment. These phenotypic traits are often noticed within a short period and within the lifetime of the organism. It is also reversible across most cases. When traveling from sea level to high altitudes, one of the most well-known examples of acclimatization in humans can be observed. The body adjusts to the new environment through acclimating and adapting.
Adaptation is the physical or behavioral characteristic of an organism that helps an organism to survive better in the surrounding environment.
Heat is the form of energy that is transferred between two substances at different temperatures. The direction of energy flow is from the substance of higher temperature to the substance of lower temperature.