The brain which, along with the spinal cord gathers informationand responds to changes in the environment.
All cells in the body have the same DNA and the same genes. In organs & tissues the expression changes.
ultra violate radition
UV is an environmental human carcinogen. It’s the most prominent and universal cancer-causing agent in our environment. There is very strong evidence that each of the three main types of skin cancer (basal cell carcinoma, squamous cell carcinoma and melanoma) is caused by sun exposure. Research shows that as many as 90% of skin cancers are due to UV radiation.
1: They provides seeds
Explanation:
Flowers provides seeds that make possible to grow more plants
Rock Cycle? Changes rock to from one kind to another
