Ultraviolet sun rays it damages the cells and can cause skin cancer.
Answer:
When the pollen tube grows into the ovule
Explanation:
Simmilar to animals, fertilization occurs when the egg (ovule) and the sperm join together to produce a new individual. In flowers, when the pollen tube grows into the ovlue is when pollen and ovule join together and fertilization occurs. A new seed is the produced, ready to produce a new individual.
Answer:
DNA and protein
Explanation:
two biomolecules are most often
analyzed to establish homologies between
different species are DNA and proteins