Answer: Diffusion occurs due to the random movement of particles. It usually happens due to a concentration gradient, meaning that molecules move from an area of high concentration to an area of lower concentration.
Explanation:
Answer:
So they are lighter and move quicker.
Explanation:
With the small wings and bodies birds have it would be hard for them to escape predators and lift their own weights if their bones were dense like humans' bones. The hollow part of the birds' bone is connected to their lungs so they have enough oxygen to fly easily. Hope this can help you! :)
Answer:
O ácido pirúvico é transportado para as mitocôndrias através de um cotransportador de ácido monocarboxílico e, em seguida, é metabolizado por PDH em acetil-CoA. O metabolismo do acetil-CoA segue o caminho descrito anteriormente
Explanation:
