Answer:A
Explanation:<em>The core is a solid in the middle and molten on top of it</em>
Passive transport uses no energy, so an example of that would be diffusion. So your answer would be D, diffusion.
recycling and using alternative power
Answer:
it really depends on the birds them selves. one time i had 2 parakeets in the same cage and there was only one food and one water container and and there wasn't a problem with them fighting or anything but i did end up putting 2 food and water containers in because i was having to re fill the containers a lot but even then they still liked to eat and drink out of the same containers. so i guess it just depends on how well Ur birds get along.
OK well first of all I hate biology but I like writing so you can use :: The molecular reactions of cellular respiration transform Krebs cycle into the more readily available bond energy of ATP.
