Arteries carry 'fresh' blood. There is one exception. Which artery is the exception?

Which tissue produces hcg in very early pregnancy?

Where within the cell are proteins made?

What kind of chemical change involves breaking down substances using electricity?

What landforms must be present to have a rain shadow?

Dr. Bartholomew believes people who are very hostile have become so because of their environment. Dr. Tiburon believes people's level of hostility is from birth because of genetic factors.

What are the two substances that maybe formed in anaerobic respiration

Condition in which neither gene is dominant

How is natural selection important to biomes and organisms?

3. In chickens, the frizzle gene "F" controls the appearance of the feathers. A homozygous dominant chicken for the frizzle gene shows "extreme frizzle", that is his feathers are extremely disrupted.

Isn't this correct?! (I chose A). My teacher marked it incorrect. What is a phenotype? A. the physical or detectable traits of an organism B. a type of biological diversity caused by environmental factor that affects the organism C.