Amphibians are the animals that supplement the gas exchange that occurs through the lungs with gas exchange through the skin. The members of amphibian animals are Frog, Salamander, Caecilian, Newt, Toads, Diplocaulus, Labyrithodontia, and Anthracosauria. The amphibian are cold-blooded animals, which means that they are the same temperature as the water or air around them.
Oparin-Haldane hypothesis. The Oparin-Haldane hypothesis is named after the two scientists; <span>Russian scientist Aleksandr Oparin and English scientist J. B. S. Haldane. The two scientists separately hypothesized that life began when some inorganic molecules were converted into organic molecules specifically amino acids by the help of energy came from a lightning struck.</span>
B. Net movement in osmosis is from areas of higher concentration to areas of lower concentration. Net movement in diffusion occurs from areas of higher concentration to areas of lower concentration.
Answer:
the temprature
Explanation:
the season are always opposite in each hemisphere the rotational process causes the sun to be higher in the sky in the winter and lower in the summer
