Cell membranes serve as barriers and gatekeepers. They are semi-permeable, which means that some molecules can diffuse across the lipid bilayer but others cannot.
Answer:
two guard cells
Explanation:
Stomata are the pores found on the surface of leaves and some stems. They are formed from two guard cells (bean-shaped cells) joined at their ends, forming a pore.
Villi occur in the digestive system, helping to move food through your system and absorbing nutrients.
<span>Reptiles that live on land convert the ammonia in their unrine to uric acid, which is much less toxic , so it doesn't need to be diluted as much. Also excess water is absorbed in the cloaca, reducing the urine to a paste and conserving water.</span>
Answer:
Homozygous
Explanation:
Homo - Same/ zygous - same alleles
