What is true of the cambrian explosion? what is true of the cambrian explosion? there are fossils of animals in geological strata that are older than the cambrian explosion. the cambrian explosion marks the appearance of filter-feeding animals in the fossil record. the cambrian explosion is evidence for the instantaneous creation of life on earth. only the fossils of microorganisms are found in geological strata older than the cambrian explosion.

Explain light independent reactions

Ais a group of individuals of the same that exist together in the same place at the same time

Sally and sue were investigating the topic of friction in science. they used a small car and a ramp as seen in the picture to test what they were learning. they knew that they slipped easily on waxed floors but not on carpet, so they decided to change the material on the surface of the ramp to see what happened. they planned to use glass, carpet, aluminum foil, and sandpaper and run the car down the ramp over each surface. what would be the best research question to guide the girls' experiment? a) does the amount of surface area affect the friction on the moving car? b) will the car travel fastest on the glass surface? c) how does the angle of the ramp affect the speed of the car? d)do rougher surfaces tend to create more friction than smooth surfaces?