Answer:
False
Explanation:
Well-differentiated cancer cells tend to look more like normal cells in tissues where they are growing, because of this nature, they tend to grow less aggressive. In other words, they grow and spread slowly; they often referred to as low grade.
In contrast poorly-differentiated or undifferentiated cancer cells don't like normal cells in tissues where they are growing, because of this nature, they tend to grow more aggressively. In other words, they grow and spread rapidly and are often referred to as high grade.
Answer is ketosis.
Ketosis is a state for the body, when it is almost completely fueled by fat (acetoacetate<span> and </span><span>β-hydroxybutyrate)</span>. When source of carbohydrates is low or when concentration of glucose is low in blood, body use keto-bodies for energy. Major food for brain are keto-bodies.
A. red blood cells. They carry oxygen around the body, not protect from pathogens.
Answer:DNA has three types of chemical component: phosphate, a sugar called deoxyribose, and four nitrogenous bases—adenine, guanine, cytosine, and thymine. Two of the bases, adenine and guanine, have a double-ring structure characteristic of a type of chemical called a purine.
Explanation:
B. larger and more complex
Explanation: As the environment became more unpredictable, bigger brains helped our ancestors survive.