Help pl asa 1.What we call the maintenances of constant internal environment of organisms?

2. Animals which control their body temperature at constant state regardless the changes of external temperature are known as

3. What is the organ in our body which is used as an excretory organ and also used as an organ of osmoregulation?


4. What is the part of the kidney from which urine is taken through the ureter?


5. The structural and functional units of the kidney is .

what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.

carbon traps heat so more of it makes it hotter causing global warming. during the ice age carbon levels in the atmosphere were low so it got very cold. so the common things between them is carbon levels in the atmosphere.