Directions: Type your answer in the box. Make sure to use correct spelling.
The relatively stable state of equilibrium that living systems maintain by regulating their metabolic processes is known as

the core of the sun is so hot and there is so much pressure, nuclear fusion takes place, hydrogen is changed to helium. nuclear fusion creates heat and photons. when the heat reaches the earth it warms the molecules of the atmosphere, and they warm other molecules and so on.

a chair, a bed, and a toothbrush

explanation:

i was told this before by a teacher, so yeah

scientists have discovered that hiv does not cause aids by the virus's direct effect on the host's immune cells, but rather through the cells' lethal influence on one another. researchers from the gladstone institutes have revealed that hiv does not cause aids by the virus's