Answer:
the third one
Explanation:
physical change is only on looks
Phenotype <span>refers to physical characteristics that are studied in genetics.</span>
The warm water sinks and travels to areas where the water is cold then rises again. The cycle repeats.
Answer:
carbon dioxide at normal atmospheric concentrations is limiting for the metabo- lism and growth of most land plants of the world. These plants share a comparable photosynthetic metabolic pathway, termed C3 photosynthesis. With an increase in CO2 there is an increase in photosynthesis and growth.
Explanation:
