Invertebrates

A hungry leech will become more active and move around actively searching for a host to feed on. It may also exhibit a lighter coloration due to its body being less filled with blood.

It would depend on the species. The majority of anemones reproduce sexually; males release sperm that triggers egg release by females. At least one species reproduces asexually by budding, and produce only a few offspring.

There is no exact estimate of the global population of sea anemones due to their wide distribution and diverse habitats. However, they are known to be abundant in most marine environments, ranging from shallow coastal waters to the deep sea. They are considered key members of marine ecosystems and play important ecological roles.

The four groups of cnidarians are Anthozoa (corals and sea anemones), Scyphozoa (true jellyfish), Cubozoa (box jellyfish), and Hydrozoa (hydras and Portuguese man o' war).

Some platyhelminthes are parasitic and can infect humans, causing diseases such as schistosomiasis and tapeworm infections. These infections can have negative health impacts and require medical treatment. Additionally, studying platyhelminthes can provide insights into evolutionary biology and developmental processes that can have broader implications for biomedical research.

Anemones are marine animals that come in various shapes and sizes. They typically have a cylindrical body with a central mouth surrounded by tentacles. Anemones can be found in a range of colors, including vibrant blues, reds, greens, and purples. For a visual representation, you can search for images of anemones online to see their different species and colors.

The madreporite is a sieve-like plate typically made of calcareous material, such as calcium carbonate, and is located on the aboral surface of echinoderms like sea stars. It is rigid and has a hard consistency to protect the water vascular system from foreign particles.

Cnidarians include corals, and corals provide shelter for millions of ocean species.

Not only that, but most species of coral polyps also house algae in their cells, thereby pretty much functioning as plants during the day. The algae photosynthesise and give off nutrition to the coral polyps. This is why many corals are shaped like plants - to catch as much light as they can for the algae, in the same way as plants do.

By photosynthesizing, they also capture CO2 like plants do. They're underwater rainforests with the same capacities and biodiversity.

The more than 8,000 species of diatoms are the largest group in the phylum Chrysophyta of the kingdom Protista.

If you step on a sea urchin, immediately soak the affected area in hot water (not scalding) for 30-90 minutes to help ease the pain. Seek medical attention if spines remain embedded or if you experience signs of infection, such as redness, swelling, or pus.

Diatoms are very important in both freshwater and marine ecosystems. They export excess carbon in the ocean and also utilize silic acid to create their cells walls. The use of this also helps them be controlled vicariously through the abundance and dispersal of it throughout the water.

Diatoms are also able to sink, so that helps them with dispersal.

They are responsible for nearly half of the ocean's energy production.

Porifera - sponges

(por IF er ah)

Cnidaria - sea anemones and jellyfish

(ny DARE ee ah)

6 majors groups

Mollusca - snails, slugs, squids and octopuses (internal or external shell)

(mall US kah)

Annelida - segmented worms (repeated body segments)

(a NELL i dah)

Arthropoda - insects, shrimps, lobsters and crabs

(are thro POE dah)

Echinodermata - sea stars, urchins, brittle stars

(ee KY no der MAH tah)

( protozoans are also inverts)

Segmented worms,

Flatworms, Roundworms

Cnidarians

Mollusks

Sponges

Echinoderms

Arthropods*

*There are four sub-groups of Arthropods: Insects, Arachnids, Crustaceans, and Centipedes & Millipedes

They belong to the class Anthozoa.

Sea urchins are purple, red, orange, yellow/orange, and a mix of red and purple.(Sea Urchins come in many shapes sizes and colors.)

They both have a large opening through which water flows allowing them to suspend food particles from the water. Their tentacles aid in their ability to propel water towards these openings, increasing their food intake.

I'm not quite sure what a 'clown anemone' is, i researched it but the only things i found were on clownfish or anenomes. Maybe you were meaning clownfish?? If so here is some info i found about clownfish, sorry if this is not what you were meaning, but hey, you might learn something new anyway! (i sure didn't know all this stuff about clownfish!)

Scientific name: Amphiprion species

Country: Worldwide tropical

Continent: Oceania, Asia, Africa, South America, Central and North America

Diet: Algae, crustaceans, molluscs

Food & feeding: Omnivore

Habitats: Ocean

Conservation status: Not Threatened

Relatives: Thread-fin damselfish

While sea urchins are slow and non-aggressive, they do have spines for a reason. Some sea urchins possess venomous spines, sharp enough to pierce through a diving suit. This venom can cause muscle spasms, faintness, difficulty breathing and death.

Leeches produce egg cocoons which are laid in moist environments. Parents may provide some level of protection to the eggs until they hatch, but typically there is no further care given to the young once they are born. The young leeches must fend for themselves to find food and survive.

As hermaphrodites, leeches have both male and female sex organs. Like the earthworms they also have a clitellum, a region of thickened skin which is only obvious during the reproductive period. Mating involves the intertwining of bodies where each deposits sperm in the others' clitellar area. Rhyncobdellids have no penis but produce sharp packages of sperm which are forced through the body wall.

A lot of sea anemones have a facultative ectosymbiotic relationship with zooxanthellae and/or zoochlorella. Obviously these need light to carry out photosynthesis, and so in that sense yes, they do need light. However it is not really the anemone that needs the light, it's the algae and the anemone can survive without the algae, so in that sense no, they don't need light. It depends on what you meant by the question.

Diatoms can be found in oceans, freshwater, and also in soils on damp surfaces

# glycogen # fat

"Proh-BAH-sihss" -- which also may be heard said "proh-BAH-skihss" -- is a way of pronouncing the word "proboscis." The word refers to an elongated snout on an elephant and a sucking mouthpart on an invertebrate.

Cnidarians are found in marine environments, particularly in coral reefs, rocky shores, and ocean floors. They can also be found in freshwater habitats like lakes and rivers.