The planets Mercury, Venus, Earth, and Mars, are called terrestrial because they have a compact, rocky surface like Earth's terra firma. The terrestrial planets are the four innermost planets in the solar system. ... Without life, most of the oxygen would soon become part of the compounds on the planet's surface.
Answer:
A. land and oceans
Explanation:
I took the test and got it right.
Understanding the ages of related fossil species aids scientists in reconstructing an organism's evolutionary history. Relative dating arranges geologic events in chronological order without requiring each event to be assigned a specific numerical age.
Answer:
Physical adaptations do not develop during an individual animal's life, but over many generations. The shape of a bird's beak, the color of a mammal's fur, the thickness or thinness of the fur, the shape of the nose or ears are all examples of physical adaptations which help different animals survive.
