What kills hammer corals?

Valuable Member. Yes, torches can kill hammers. They should be kept farther away from any other corals.

What will clownfish host in?

Clownfish have been known to host many things other than anemones, including feather dusters and toadstool corals after rejecting every anemone presented to it. Some aquarists believe that tank-raised clownfish do not host anemones as readily as wild-caught clownfish after a few generations.

Why do anemones retract their tentacles?

These tentacles can be completely retracted inside the body column to protect itself from predators, and also when it catches prey. The tentacles are covered in nematocysts, which are specialized cells that certain species contain to assist in self defense and hunting prey.

Why is clownfish safe around anemones?

In return for a safe and protective home, the clownfish benefits the anemone in several important ways. These include cleaning the anemone, providing nutrients in the form of waste, and scaring away predatory fish such as the butterflyfish.

Why should you not touch live coral?

Corals are fragile animals. Be careful not to touch, kick or stand on the corals you see in the water because this may damage or even kill them.

Will clowns host torches?

nautical_nathaniel said: Torch corals will host clownfish, but the clownfish are also likely to kill it with their “nuzzling”. The coral will also never fully expand once clownfish start interacting with it.

What senses do cnidarians have?

Cnidarians have a simple nervous system consisting of a nerve net that can detect touch. They may also have other sensory structures. For example, jellyfish have light-sensing structures and gravity-sensing structures. These senses give them a sense of up versus down.

Are cnidaria 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.

Are cnidaria invertebrates or vertebrates?

Cnidarians are invertebrates such as jellyfish and corals. They belong to the phylum Cnidaria. All cnidarians are aquatic.

Are cnidaria motile?

Medusa forms are motile, with the mouth and tentacles hanging down from an umbrella-shaped bell. Cnidarian morphology: Cnidarians have two distinct body plans, the medusa (a) and the polyp (b). All cnidarians have two membrane layers, with a jelly-like mesoglea between them.

Are cnidarians monoecious or dioecious?

Depending on the species, cnidarians can be monoecious (also called hermaphroditic), with individuals capable of producing both eggs and sperm, or they can be dioecious, with individuals of separate sexes for gamete production.

Are cnidarians characterized by stinging nematocysts?

Cnidarians contain specialized cells known as cnidocytes (“stinging cells”) containing organelles called nematocysts (stingers). These cells are present around the mouth and tentacles, and serve to immobilize prey with toxins contained within the cells. Nematocysts contain coiled threads that may bear barbs.

Are cnidarians characterized by stinging spicules?

Cnidarians are characterized by stinging spicules. 3. The life cycle of anthozoans includes medusae, planulae, and polyps.

Are cnidarians invertebrates or vertebrates?

Cnidarians are invertebrates such as jellyfish and corals. They belong to the phylum Cnidaria. All cnidarians are aquatic.

Are cnidarians monoecious or dioecious?

Depending on the species, cnidarians can be monoecious (also called hermaphroditic), with individuals capable of producing both eggs and sperm, or they can be dioecious, with individuals of separate sexes for gamete production.

Are cnidarians radial or bilateral?

Based on both the polyp and medusa body plans, cnidarians are classified as having radial symmetry. All cnidarians have a central point or axis, and if you divide a cnidarian through this central axis, you’ll end up with equal parts on either side.

Are cnidarians radial?

Cnidarians have radial symmetry and true tissues. Some cnidarians form colonies, such as corals.

Are cnidarians terrestrial or aquatic?

Cnidarians (hydroids, jellyfishes, corals, and sea anemones) form a diverse phylum (Cnidaria, old Phylum Coelenterata) that contains more than 10,000 species. The phylum also includes the parasitic Myxozoa. Typical cnidarians inhabit aquatic (predominantly marine) environments.

Are cnidarians terrestrial?

Cnidarians are radially symmetrical, soft-bodied animals that only live in aquatic environments. They include the jellyfish, sea anemones, corals and hydroids.

Are sexes separate in cnidaria?

Cnidarians have separate sexes and many have a lifecycle that involves two distinct morphological forms—medusoid and polypoid—at various stages in their life cycles. In species with both forms, the medusa is the sexual, gamete-producing stage and the polyp is the asexual stage.

Are sexes separate in cnidaria?

Cnidarians have separate sexes and many have a lifecycle that involves two distinct morphological forms—medusoid and polypoid—at various stages in their life cycles. In species with both forms, the medusa is the sexual, gamete-producing stage and the polyp is the asexual stage.

Are sponges cnidarians?

Sponges are also called sea sponges. Cnidarians include jellyfish and corals. Invertebrates in these phyla have existed virtually unchanged for hundreds of millions of years. This shows that they are well adapted for their habitats.

Can cnidarians sense light?

Cnidarians are the most primitive present-day invertebrates to have multicellular light-detecting organs, called ocelli (eyes). These photodetectors include simple eyespots, pigment cups, complex pigment cups with lenses, and camera-type eyes with a cornea, lens, and retina.

Can plants fart?

If you define fart as the Merriam-Webster dictionary does—to expel intestinal gas from the anus—then no, plants don’t fart, because they don’t have anuses. However, they do expel gas (including methane, a greenhouse gas found in human and animal farts), so they basically fart in their own plantlike way.

Can trees pee?

Trees also excrete water vapour containing various other waste products during this process. While this is an excretion, you may not consider this akin to pooping and peeing, perhaps more like breathing.

Do chordata have a nervous system?

In chordates, the central nervous system is based on a hollow nerve tube that runs dorsal to the notochord along the length of the animal. In vertebrates, the anterior end of the nerve tube expands and differentiates into three brain vesicles.

Do cnidaria have jointed appendages?

They also have appendages that are jointed and their bodies are segmented.