ANSWER
D. a star hope this helps :)
Answer:
2
Explanation:
DNA is tightly packed up to fit in the nucleus of every cell. As shown in the animation, a DNA molecule wraps around histone proteins to form tight loops called nucleosomes. These nucleosomes coil and stack together to form fibers called chromatin
Answer:
Explanation: A frameshift mutation completely changes the genetic code from the point of the mutation, so the protein made as a result of the mutation would have the incorrect structure and would not function as it should.
Donna's favourite foods are associated with high risk of developing stomach cancer. Recent scientific findings suggest that there are specific diet habits which could increase someone's risk of stomach cancer and these are a diet low in fruits and vegetables and high in salty and smoked foods. More specifically, it has been found that eating high quantities of processed meat increases the risk of cancer in the lower stomach. Donna's favourite foods include hot dogs and cured ham, which are types of processed meat.
Answer:
Digested food is able to pass into the blood vessels in the wall of the small intestine through the process of diffusion. The inner wall, or mucosa, of the small intestine is covered in wrinkles or folds called plicae circulares that project microscopic finger-like pieces of tissue called villi, which in turn have finger-like projections known as microvilli. The function of the plicae circulares, the villi, and the microvilli is to increase the amount of surface area available for the absorption of nutrients.
Each villus transports nutrients to a network of capillaries and fine lymphatic vessels called lacteals close to its surface.
Explanation:
hope this helps:)
