All of the above The eggs of land animals are called *
1 point
Land eggs
Leathery eggs
Amniotic eggs
Hard-boiled eggs
Which of the following is true of mammals?
1 point

Which statement describes the appearance of a temperature-vs.-time graph? a horizontal line shows that the temperature increases at a constant rate over time. a vertical line shows that the temperature decreases at a constant rate over time. horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases. horizontal lines where the temperature increases are connected by upward-sloping lines where the temperature is constant for each phase.

What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons? a) 6 b) 8 c) + 1 d) 12 e) 18

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.