Answer:
Nephron is the functional unit of kidney. The kidney contains around 4 to 5 million of nephrons in their structure. These nephrons helps in the blood filtration.
The loop of Henley passes down the filtrate for the production of urine. The excess salt is removed from the loop and deposited in the medullary part of the kidney. This is important as the nephron can now become hyperosmotic medullary concentration and helps in the urine production.
Bryophytes also need a moist environment<span> to reproduce. Their flagellated sperm</span>must<span> swim through water to reach the egg. So mosses and liverworts are restricted to </span>moist<span> habitats.</span>
It helps them survive because since they eat mostly or all flies their long tounge can reach the flies from a long distance and that makes it easier to catch the flies
The danger receptor is called nociceptor; this signals the brain to pull the injured part away from danger. Signal travels to the posterior or dorsal horn of spinal cord.
