Answer:
B. Adult flies have emerged from the shells
Explanation:
A pupa is the life stage of some insects undergoing transformation between immature and mature stages. The pupal stage is found only in insects that undergo a complete metamorphosis, with four life stages: egg, larva, pupa, and imagoa, therefore, an empty pupae means the insect has emerged from the pupae by splitting the pupal case and leaving it empty
Like Eukaryotic? Eukaryotic cells have nucleus and organelles.
Answer:
The true statement regarding the pancreas is that pancreas secretes sodium bicarbonate (option D).
Explanation:
The pancreas is a gland that performs both exocrine and endocrine functions. Within its exocrine function this gland can secrete a solution formed by water and sodium bicarbonate.
The <u>secretion of pancreatic sodium bicarbonate is carried out from the ductal and central cells</u>, providing a hydroelectrolytic solution useful for attenuating stomach acid at the level of the duodenum.
The other options are not correct because:
<em> A. </em><u><em>Trypsin </em></u><em>is an enzyme that is responsible for breaking the pethidic bonds of porters, and not carbohydrates.</em>
<em> B. Pancreatic </em><u><em>amylase </em></u><em>acts on carbohydrates, not fats.</em>
<em> C. </em><u><em>Lipase</em></u><em> in pancreatic juice acts on fats, not on sugars or carbohydrates.</em>
<span>Teens under the age of 16 are at great risk of catching an STI ot STD because of their physical immaturity and vulnerability. </span>
