Answer:
He identified that diseases are caused by malfunctioning cells.
That all cells arise from pre-existing cells.
Introns because they are coding sequences.
Exons because they are non-coding sequences.
Answer:
B
Explanation:
Without the greenhouse effect the earth would be very cold.
The essential amino acid for cats but not dogs is taurine. Taurine is an amino acid that is essential in the process of metabolizing fats. Cats need twelve essential amino acids compared to eleven needed by dogs. The deficiency of this amino acid is most diagnosed in cats ad it generally leads to blindness, deafness and heart failure in felines.