During photosynthesis plants take in___from the atmosphere and release___ back into the atmosphere

What are the steps of how energy is transformed in plant cells?

List two limitations of natural selection

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.