The factors were latitude, elevation, nearby water, and ocean curents. All of these factors affect earth's climate.
Frogs lay eggs under water. When they hatch they are called tadpoles. After a time as tadpoles they undergo metamorphosis where they grow legs and lungs and become the little friendly hippidy hoppidy guys you see on your porch every night.
Recombinant DNA technology
Answer:
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium.
Explanation:
I don't know about the other ones but the sky is blue because molecules move from the sun than the red from the sun. The blue has separated from the sun.
