Why have we not found examples in the fossil record of every animal that ever lived on earth? select all that apply. select all that apply. many fossils remain buried. we can only find them when they are exposed by erosion or excavation. to become a fossil, an animal must remain buried for thousands or millions of years until it (and the layer around it) turns to rock. it is just a matter of time before we find them all. rocks contain the history of all life, if you know where to look. to become a fossil, an animal must be quickly and completely buried in ash or sediment before it has a chance to decompose?

Astudent conducts an experiment to see how music affects plant growth. the student obtains four identical plants. each one is potted in the same type of soil and receives the same amount of sunlight and water each day. plant a listens to classical music for three hours each day. plant b listens to rock music for three hours each day. plant c listens to country music for three hours each day. plant d does not listen to any music at all. 2. based on the experiment in the scenario, which visual aid would be most in showing the change in the plants' heights over time? a. a pie chart b. a line graph c. a timeline d. a bar graph

Lomexico, central america, and the caribbean: mastery testselect the correct answer.which of the following was the leading cause of death among native americans after the arrival of europeans? a.conquistadorsb.diseasec.starvationd. warreset

Mexico city is an example of how humans alter their environment because it was a. one of the world’s largest cities b. built on drained and filled lake beds c. built after conquest by the spanish d. once the capital of the aztec empire