Answer:
a limbless cold-blooded vertebrate animal with gills and fins and living wholly in water.
Explanation:
G00gle
Answer:
as particles gain energy and the material takes up more space
Explanation:
The cool air thats now in a hot area is expanding and taking up more space in the balloon, this is why the baloon starts to swell up
Generating heat in order to start a reaction uses energy to begin with. Enzymes however reduce the activation energy and can only function (usually) within a narrow temperature range, using less energy. Enzymes are used because they are more efficient.
Answer D is correct, Wikipedia says that they move water from roots to stems and leaves.