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Answer:</h2>
The Fluid present in the knee joint is Synovial fluid.
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Explanation:</h2>
- <u>Synovial fluid</u> is the viscous liquid that helps in lubrication of joints and maintains their smooth movement.
- Other than knee joint this fluid is present in all of the joints including shoulders, hips, hands, and feet.
- Various joint conditions like arthritis, gout, infections and bleeding disorders depends upon the quantity and the quality of the fluid
- In old age this fluid decreases with increase in age that is the reason why the elderly people suffer from joint pain.
- For analysis a sample of this fluid taken and examined, this process is known as arthrocentesis.
Result: Synovial fluid is present in knee as well as every joint of our body for smooth movement.
Yes this is true, because niche is where the organism is comfortable, and their instincts from when they are born affect their perspective of their environment
The hormone responsible for secondary sex characteristics in females is estradiol. Also spelled oestradiol, it is one of three variations of the estrogen hormone found in a woman's body. It is a steroid hormone created by the body using cholesterol as a basic component. It is produced in the ovaries by granulose cells and is the predominant of the three estrogens for the majority of a woman's life.
Secondary sex characteristics are the physical characteristics caused by hormonal changes during puberty that are not directly related to reproduction despite being tangentially involved in the process. In women, this involves the growth of pubic hair, widening hips, breast development, and a change in the ratio of body fat to overall mass.
<h3>What is a Hormone ?</h3>
Hormones are chemical substances that act like messenger molecules in the body. After being made in one part of the body, they travel to other parts of the body where they help control how cells and organs do their work
Learn more about Hormones here:
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All cells have at least three common features: a cell membrane, cytoplasm and DNA. Every cell has a selectively permeable cell membrane that allows some materials to pass in and out of the cell, and contains the water-based solution cytoplasm.
The order in which toxic nitrogen compounds are converted to less toxic nitrogen compounds in the nitrogen cycle is NH3 ----> NO2- -----> NO3-
The nitrogen cycle refers to the movement of nitrogen in the ecosystem. The process of converting nitrogen into less toxic forms of nitrogen which is useful to plants is called nitrification.
During the process of nitrification, ammonia or ammonium is first converted to nitrates by the action of the microorganism called nitrosomonas. Nitrobacter converts nitrites to nitrates which are useful to plants.
Hence, the order in which toxic nitrogen compounds are converted to less toxic nitrogen compounds in the nitrogen cycle is NH3 ----> NO2- -----> NO3-
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