Answer:
C) gills
Explanation:
becausethe tadpoles starts to lose its gills and develop teeth. Soon after this their back legs develop, their diet changes and they become carnivorous
<h2>Explanation:</h2>
Membranes are semipermeable lipid bilayers. Permeability refers to the ease with which molecules cross biological membranes. Because of the chemical and structural nature of the phospholipid bilayer (hydrophobic core), only lipid-soluble molecules are able to freely pass through the lipid bilayer because it attracts these non polar molecules.
Water soluble or hydrophilic molecules cannot pass through these lipid membranes because hydrophobic bilayer repels hydrophilic molecules. Ions and large polar molecules cannot pass through the lipid bilayer.
But more specifically, whether a molecule can pass through the membrane depends on its size and its electrical nature.
Answer:
renal vein
Explanation:
The afferent arteriole collects blood from the glomerulus and extends o the renal tubule where it divides into capillaries that ramify the tubule. This blood is the collected by the venules that join into the renal vein which carries blood away from the kidneys. The filtrate in the collecting tubule becomes urine and trickles down into the collecting duct where it joins urine from other nephrons. The urine then flows into the pelvis via the urinary bladder through the ureter.
Yes, if the immune system is strong, it is capable of fight off an illness with the help of the white blood cells (leukocytes). They act as the "soldiers" of the body because they are the first ones to try and kill whatever illness affects the body. Unless the person has a weak immune system, which can be a cause from poor health.
