B is the correct answer. Good luck :)
Answer:
Eustress - The stress response to agreeable or pleasant events.
Explanation:
- Stress is defined as a response to a stressor such as climate change, work load etc.
- Depending upon the stressor and the response produced, stress is classified as Eu-stress and distress.
- Eustress is a positive response that is healthy and beneficial for a person. Like stress due to physical exercise, Excessive laughing due to watching a comedy, happiness etc.
- Distress is a negative and a degrading response toward a stressor, it causes health issues like insomnia, hypertension etc. examples of distress are stress due to an accident, over exhaustion due to excessive work load etc.
Explanation:
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Answer: It is known as ecological homeostasis to the exchange that takes place between diverse natural means that allow to maintain a balance within an ecosystem. These adjustments are considered necessary to achieve survival. Usually these homeostatic balances can be understood by observing populations or systems that depend on each other.
Explanation:
Answer:
The correct answer is - Cyanobacteria; Horizontal gene transfer
Explanation:
According to the endosymbiotic theory it is believed that the eukaryotic plastids (mitochondria and chloroplasts) have developed from symbiotic bacteria, such as cyanobacteria and alpha-proteobacteria.
During this symbiotic process, some genetic material may have been move in between the symbiotic counterparts in a process called Horizontal gene transfer or lateral gene transfer.
thus, the correct answer- Cyanobacteria; Horizontal gene transfer
