Answer: I believe it would be A: epithelial cell, intestinal lining, intestine, digestive system, human body.
Hope this helps!!
Answer:
D) because they separate, develop different traits therefore, they can no longer reproduce with each other.
Answer:
It is difficult to tell if fluoride causes this cancer.
Explanation:
The U.S. public health service has diverse team with more than 6500 employees. Their mission is to promote health and safety of the people of United States. The fluoride is added to drinking water since 1940s and this process is called water fluoridation. It is difficult to tell if the fluoride causes cancer but there has not been any relationship found between fluoridated water and cancer. Fluoridated water can reduce and reverse the tooth decay.
Answer:
brothers and sisters don't look exactly alike because everyone (including parents) actually has two copies of most of their genes. And these copies can be different. Parents pass one of their two copies of each of their genes to their kids.
