Answer:
They realize that some nonliving things can act as though they are alive! ... They place aquatic Elodea plants in test tubes full of aquarium water and expose the ... Next, students predict what will happen if samples of both solutions are allowed to dry. ... students if they would expect AM or FM car radios to fade out more
Explanation:
Lab Test. Learn vocabulary, terms, and more with flashcards, games, and other study tools. ... why is the BTB green ... why did the btb change colors in some test tubes ... when you began the experiment was there co2 in the water, where did it go
It’s C ) Mitochondria-makes energy
Answer:
The nervous system regulates breathing and heartbeats but it's also responsible for regulating the core temperature of the body. So when conditions are too warm or hot and body temperature rises, the blood vessels can dilate causing heat loss. Nerves can trigger sweat glands to release fluid that evaporates and cools the skin so that body temperature begins to lower to a normal condition.
Answer:
Human blood contains a buffer of carbonic acid (H2CO3) and bicarbonate anion (HCO3-) in order to maintain blood pH between 7.35 and 7.45, as a value higher than 7.8 or lower than 6.8 can lead to death. In this buffer, hydronium and bicarbonate anion are in equilibrium with carbonic acid.