Excreting urea helps in maintaining internal homeostasis by retaining water.
The mammals like humans excrete urea, while reptiles and birds, and some terrestrial invertebrates generate uric acid as waste. Generating uric acid in place of urea is beneficial as it is less toxic and diminishes water loss and the subsequent requirement for water.
This retention of water helps birds and reptiles to sustain internal homeostasis mainly in hot weather.
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Answer: As a flavor enhancer </span>
Glutamate is known to be one of the most free amino acid in
bacteria cytoplasm and it is present in many proteins, tissues and peptides. This
amino acid is produced in the body and binds with other amino acids to form a
structural protein. However, glutamate is commonly used as flavor enhancer in
foods and enhance the savory flavors impacted by glutamic acid.
Answer:
Egestion
Explanation:
This is because Egestion is the process where undigested food remains is removed or discharged from the alimentary canal as faeces. In Egestion, the food that refuse to digest form faeces and it is remove from the body through defecation. While exrection is the removal of wastes products like urine from the alimentary canal.
The answer should be 4) as it is known that uv radiation might have an effect on dna, thus causing mutations such as skin cancer in humans.
