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

The correct answer is :

There are fossils of animals in geological strata that are older than the Cambrian explosion.

The Cambrian explosion or Cambrian radiation was an event that occured approximately 541 million years ago in the Cambrian period, when most major animal phyla appeared in the fossil record.

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.