What is a stationary front? A:when a cold air mass and a warm air mass meet and don't move

B:when a warm air mass doesn't move

C:when a cold air mass remains in place

D:when two cold air masses meet and don't move

Individuals do not compete directly for resources, but are prey for the same predator

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.

Which of th following is needed for cellular respiration to occur