Echinoderms, such as sea stars and sea urchins, have an endoskeleton made of hard plates called ossicles that lie inside their bodies. Although this endoskeleton is internal, it functions similarly to an exoskeleton by providing support and protection. It allows echinoderms to control their body shape and movement, just like an exoskeleton does for other invertebrates.
They are NOT poisonous. They are venomous. Check you facts, look it up, or at least learn it!
the animal with the longest lifespan is the giant tortoise with 152 years. Runners up include: the box turtle with 123 years, the elephant with 69 years, and the horse with 50 years.
Fish have a single circulatory pattern, wherein the blood passes through the heart only once during each complete circuit. Oxygen-deprived blood from the body tissues comes to the heart, from where it is pumped to the gills. Gaseous exchange happens within the gills, and the oxygenated blood from the gills is circulated throughout the body.
On the other hand, in mammals, the deoxygenated blood enters the heart, from where it is pumped into the lungs for oxygenation. The oxygenated blood returns to the heart from the lungs, to be transported throughout the body.
~Buzzle:
my teacher said it is "species" not genus.
Plankton is a character from the show Spongebob Squarepants. He is a maniacal little plankton that plots to steal the Crabby Patty Recipe from the Krusty Krab.
Fish have evolved to survive in water. If they didnt have water they can't breathe, they dry up and die. Some can live up to 8 hours without water as long as it is on ice. A fish in an aquarium has to have a water pump that supplies air bubbles for oxygen.
"Biologist" is a very general term, referring to someone who studies any living organisms. A "marine biologist" is a type of biologist who studies organisms that inhabit a salt water environment (sometimes "marine" refers also to fresh water, but usually it is specific to salt water).
Many ancient bacteria live in extremely hot or salty water. True bacteria describes one-celled organisms that have no separate nucleus.
Krill reach sexual maturity after 3 years, and both male and female krill are required to reproduce. During the dark, cold months krill shrink in size and lose their reproductive capacity--a process called "regression." As warmth, hours of light and food supply increases, they become sexually mature again.
The male produces tiny sperm packets and uses his legs to transfer them to the female's reproductive organs. The female stores the sperm packet in a pouch until she is ready to lay her eggs. The eggs are fertilized while leaving her body.
Source: How Do Krill Reproduce? | eHow.com http://www.ehow.com/about_6133921_do-krill-reproduce_.html#ixzz1wDX95MBY
Blacktail Damselfish (Dascyllus melanurus)
Salmon are in the family Salmonidae and the genera Salmo and Oncorhynchus.
The most common species are the Atlantic salmon (Salmo salar) and the brown trout (Salmo trutta).
According to the The Definitive list of the Marine Fauna and Flora of the British Isles and Surrounding Seas. Edited by Christine Howson and Bernard Picton there are 325 marine fish in UK & Irish waters
There possed to be a cryptid that fly in the air they could exist I think they do
Actually they are a recently discovered electrical phenomena known as red sprites.
Although I can not say authoritatively, I can however say that fish can not "hear" as we do but instead sense vibrations with their swim bladder. Some fish, particularly fresh water Amazonian fish, sense the vibrations from thunder storms which act as a signal to spawn. Bass frequencies in music can imitate this. One would assume that their respiration rate would increase as a result of the urge to spawn.
Carl Chun was a German Marine Biologist (October 1, 1852-April 11, 1914) and he was most famous for discovering the Vampire Squid.
Alot of people like marine biology because it is the study of ANIMALS!
Most people would consider fish in the Animalia kingdom ( animal kingdom ), Fish, mammals, insects, animals of course would all belong to the Animalia kingdom. Unlike us we belong to god. But if you are Muslim or Islam or even Jewish and Sikh you would know what kingdom you belong to. -Top Contributor Hillary
This chapter covers the following animals.
Phylum: Nematoda (Roundworms)
Phylum: Arthropoda (Arthropods)
Subphylum: Cheliceriformes
Class: Arachnida (Arachnids - Spiders, Scorpions, Harvestmen, Ticks and Mites)
Class: Merostomata (Horseshoe Crabs)
Subphylum: Myriopoda
Class: Diplopoda (Millipedes)
Class: Chilopoda (Centipedes)
Subphylum: Hexapoda
Class: Insecta (Insects)
Subphylum: Crustacea
Examples of Crustaceans - Decapods (Shrimp, lobsters, crabs)
Copepods and Krill
Barnacles
Isopods