The body plan of platyhelminthes is less advantageous than nematode because . Select one: a. it has flame cells b. it has no circulatory system c. it has no pseduocoelom d. it has radial symmetry

The correct answer is option c, that is, it has no pseudocoelom.

Explanation:

Platyhelminthes are also known as flatworms. They are generally parasitic, these are triploblastic species with bilateral symmetry. In Platyhelminthes, flame cells do the function of excretion, however, these species are devoid of a circulatory system. On the other hand, nematodes are also known as roundworms and like Platyhelminthes, the nematodes are also diploblastic species with bilateral symmetry.  

However, Platyhelminthes are acoelomate, on the other hand, nematodes are pseudocoelomate species. The Platyhelminthes lack a complete digestive system, while nematodes have a complete digestive system. Thus, it can be stated that the body plan of Platyhelminthes is less advantageous in comparison to nematodes because of no presence of pseudocoelom.  

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.

some fungi obtain their nutrients from a living host (plant or animal) and are called most biotrophic fungi have fairly narrow host ranges—they are specialized on a limited called rhizomorphs that allow the fungus to grow from one tree to another. ascospores are formed inside a sac-like structure called an ascus. so your answer is a