Answer:
physical, chemical, nuclear
Explanation:
Explanation:
The Earth's geologic past is divided into hierarchical time periods. This hierarchy comprises eons, eras, times, epochs, and ages, from largest to smallest. The Cenozoic, Mesozoic, and Paleozoic Periods are the three main divisions of the Phanerozoic.
Molecules produced in the nucleus are transported to the cytoplasm via ribosomes.
B. Crab
is your answer
An crab has an exoskeleton
hope this helps
