B is the answer I strongly believe
Answer:
D: a Hypertonic sucrose solution
Explanation:
Sucrose cannot pass through the membrane and Hypertonic solution's cause cells to shrink.
Answer:
Explanation:
Likewise, shallow‐water invertebrates living in the thermally stable subtidal ... We use the common tropical sea urchin Lytechinus variegatus to study how ..... Relationship between culturing temperature and larval survival ...
Answer:
Porifera—gastrovascular cavity, coelomate.
Explanation:
Sponges do not contain digestive system but obtain nutrients through the diffusion process. Porifera is the most commonly asymmetrical in nature but can also have radial symmetry. Porifera has no coelom.
Lacking a true digestive system, they depend on the intracellular digestive processes of their choanocytes for their energy intake. Gas exchange, circulation, and excretion occur by diffusion between the water and the cells.
