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Bio 4
| Question | Answer |
|---|---|
| What is the maintenance of internal body temperture within narrow limits | Thermoregulation |
| What animals that maintain internal temperature using heat generated by their own metabolism. | Endotherms |
| What are animals that absorb heat from their surroundings | Ectotherms |
| What is the functional unit of the kidney | nephron |
| A freshwater fish is an _______ . It takes up ions in food, takes up salt by gills, gains water through gills, but excretes large amounts of water in____________ from kidneys. | osmoregulator: dilute urine |
| Urine from the kidneys moves through the system for excretion in the following order | kidney – ureter – bladder – urethra |
| What is the most toxic by-product of metabolism | Ammonia |
| human’s urine contains | urea |
| The ___________ and _______ are the blood vessels that bring blood to and from the kidneys | renal artery and renal vein |
| What is the first step in the formation of urine | filtration. |
| evaporation in human perspiration increase heat loss | to cool a person down |
| thermoregulation contraction of skeletal muscles as in shivering | increases body heat |