<h2>(A) is the correct option </h2>
Explanation:
- Hydrothermal vents, also known as deep sea vents are the aftermath of a volcanic eruption due to shifting of the plates that form the Earth’s crust
- Black smokers are formed due to the high pressure at this depth and temperature of the trapped water because of which there is low oxygen content of water
- The black smokers emit fluids and causing it to emit chemicals such as sulfide, iron, copper and zinc
- Barophiles are organisms whose survival and reproduction is optimized to high pressures, such as those in deep sea environments
- Psychrophiles are microorganisms that can grow at 0 °C and below, have an optimum growth temperature close to 15 °C, and usually do not survive at temperatures above 20 °C
- They are found in permanently cold environments such as the deep waters of the oceans and because they are active at low temperature, psychrophiles are important decomposers in cold climates
plants can also respond to stimulibut the response is usually slower than that of animals.
What organisms are you talking about
The hypothalamus is the gland which produce no hormones.
<h3>
What hypothalamus do?</h3>
The brain's hypothalamus is a section that lies immediately below the thalamus. Being the connecting link between the endocrine and neurological systems, despite its tiny size, this area is crucial for the healthy operation of the organism.
The hypothalamus does not secrete any hormones in this situation; instead, it controls hunger, thirst, blood pressure, and temperature.
For more information regarding hypothalamus, visit:
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<span>The special feature is that it contains mesophyll and budndle sheath cells which is photosyenthesis is separated in each of them. </span>
