The Cambrian explosion refers to Earth's historical benchmark of life involving the
A. appearance of fossils for all major phyla of animals.
B. origination of life, when the progenotes formed the first cells.
C. All of the answer choices are correct.
D. mass extinction of the nonavian dinosaurs.
E. development of the first multicellular organisms.
A. appearance of fossils for all major phyla of animals.
You might also like to view...
What form of energy is stored within the molecules of ATP?
a. kinetic b. heat c. potential d. nuclear e. light
Which flower would you select as the one matching the plant from which he gathered the seeds?
A) The flower with eight parts B) Either the flower with five or the flower with eight parts could match the seeds. C) The flower with five parts D) The flower with six parts
Which of the following is incorrectly matched?
A) Salt: Formed by the combination of hydrogen ions (H+) and hydroxide ions (OH-) B) pH: Measure of the acidity or basicity of a solution C) Acid: Release hydrogen ions (H+) in an aqueous solution D) Water: Is the solvent in aqueous solutions E) Base: Release hydroxide ions (OH-) in an aqueous solution
The ideology that living things arise from nothing is known as: