This is because persistent organic pollutants accumulate in the body fat of living organisms and increase in concentration as they move up the food chain.
<h3>What is Persistent organic pollutants?</h3>
These are organic compounds that are stable and do not degrade easily. They are usually harmful and accumulate in the body fat of organisms.
They are also known to increase in concentration as they move up the food chain which is why predators have more of them.
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Answer:
Kidney is an organ
Excretory system is a system
Explanation:
Cell is the base unit
- Many similar cells combine to form tissues
- Tissues combine to form organs
- Organs combine to form system
Plants are living things because they are made of living cells and exchange gases with the air around.
The transport of substance A from peritubular capillary into the fluid of renal tubule is Tubular secretion.
What is Tubular secretion?
Tubular secretion is the phenomenon of transfer of materials from peritubular capillaries to fluid of renal tubule. It is basically a process of toxins removal from blood capillaries and tissues and their active secretion into the nephrons. The nephrons are surrounded by peritubular capillaries and the exchange between nephron and blood occurs via peritubular capillaries. The tubular secretion is most active in proximal convoluted tubule (PCT). Tubular secretion is an important parameter for measuring kidney function and excretion process. It also maintains the blood pH.
Hence, the substance A that is transported from plasma of peritubular capillary into fluid of reanl tubule is said to be secreted.
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Bubbles are Carbon Dioxide
Oxegyn in the tank
