What class of cnidarians is mostly corals and sea anemones?

What class of cnidarians is mostly corals and sea anemones?

class Anthozoa

Are sea anemones porifera?

Poriferans (phylum Porifera) are sponges. These aquatic, asymmetrial animals are also sessile (unlike most animals). They are simple creatures, having no tissues. Jellyfish, hydra, coral, and sea anemones belong to phylum Cnidaria.

What could a hydra eat?

Hydra oligactis, as in all Cnidaria, are strictly carnivorous and eat many different kinds of small metazoans, including annelids, copepods, cladocerans, and insects. Hydra capture their food by paralyzing and killing the food organism by means of nematocysts, which are discharged into the prey.

Are cnidarians asexual?

All cnidarian species are capable of sexual reproduction, which occurs in only one phase of the life cycle, usually the medusa. Many cnidarians also reproduce asexually, which may occur in both phases.

Is a jellyfish a hermaphrodite?

Jellyfish are usually either male or female (with occasional hermaphrodites). In most cases, adults release sperm and eggs into the surrounding water, where the unprotected eggs are fertilized and develop into larvae.

Are primitive characteristics low functioning?

Are primitive characteristics low-functioning? Explain your answer. No. They are not low-functioning.

What is the low end of the autism spectrum?

If you still hear people use some of the older terms, you’ll want to know what they mean: Asperger’s syndrome. This is on the milder end of the autism spectrum. A person with Asperger’s may be very intelligent and able to handle their daily life.

What is a primitive character?

In phylogenetics, a primitive (or ancestral) character, trait, or feature of a lineage or taxon is one that is inherited from the common ancestor of a clade (or clade group) and has undergone little change since. “Advanced” means the character has evolved within a later subgroup of the clade.

What is the most primitive animal?

Placozoa