Because nowadays, many horses are domesticated, and food they would have eaten in the wild, they don't usually eat anymore. They have learnt to adapt to eating other foods, like hay, that require molars to ingest. This is why over time, their tooth structure has changed.
1. remaining skin cells still have the mutation that causes the cancer in their DNA, even if the symptoms are removed
2. it is likely to affect an entire chromosome because during meiosis there may be errors in crossing over when the condensed chromosomes can exchange large parts of the chromosomes in error
Protein is what helps build muscle and prolongs the feeling of being full. People who have a protein deficiency can experience edema (swelling), loss of muscle mass, and weakness/ fatigue.
Answer:
by experimentation and observation
Explanation: