Answer - Theory
Reasoning - Your best bet and term to describe the evolution by natural selection is theory as to still scientific theory/research is still ongoing and changes can be made in a different direction.
I believe the term for two similar chromosomes would be homologous chromosomes.
Answer:
The average adult, when resting, inhales and exhales about 7 or 8 liters of air per minute. That totals about 11,000 liters of air per day. Inhaled air is about 20-percent oxygen. Exhaled air is about 15-percent oxygen.
Explanation:
its B. Organ b/c the plants root are part of the plant
Primary consumers enrich the soil,which help plants to grow and create more food energy for all of us.