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Crustaceans
Usually considered as a subphylum, Crustaceans comprise a group of arthropods including crabs, crayfish, lobsters and shrimp. Most crustaceans are aquatic animals, though some are terrestrial, parasitic and barnacles. Crustaceans have a chitinous exoskeleton, segmented body, and paired jointed limbs.
1,209 Questions
What animals have exoskeletons?
Crustaceans such as Lobsters and Crabs have exoskeletons. Check out the "Yeti Crab" sometime when you have time: It was only discovered in March of 2005 and it does look strange.
armadillo, lobsters, crayfish, scorpion
Insects, spiders and crustaceans have exoskeletons.
Is a krill a asexual reproducer?
No, krill are not asexual reproducers. They reproduce sexually, with females laying eggs that are fertilized by males.
Do Arthropods have bilateral or radial symmetry?
Insects have bilateral symmetry because if they had radial symmetry, they would have to be perfectly round. Bilateral symmetry is just when you cut something with a line of symmetry down the middle and both sides are symmetrical.
The fresh-water prawn will eat just about anything. In nature it will eat pieces of worms, snails, clams, fish, pieces of rice, wheat, beans, nuts,etc
Prawns are omnivores and they typically eat algae, plankton, small fish, and decaying matter. They are scavengers and will also feed on various detritus and organic debris found in their environment. In captivity, they can be fed commercial shrimp pellets or flakes as well.
What features justifies the placing crayfish and cockroach in the same phylum?
The word ''Arthropoda' means ''joint-legged'' and both creatures are that. Also they have exoskeletons and open circulatory systems along with a few other common characteristics. Take a course in Invertebrate zoology.
What is the biodiversity of a prawn?
Prawns support biodiversity by serving as a food source for many predators and contributing to ecosystem balance and nutrient cycling. They can also increase biodiversity by creating habitat structure within their environment. Additionally, prawns themselves exhibit diversity within their own species in terms of physical characteristics, behavior, and habitat preferences.
prawn alwayz dissected from dorsal side... n generally its nervous system is studied.. along with a major part hastate plate(digestiv track) n statocyst(antenule) are used for microscopic studies...
How are the antennae chelipeds other walking legs and swimmerets related?
Antennae are sensory appendages that detect chemicals and vibrations, chelipeds are specialized for grasping and defense, walking legs are for mobility on land, and swimmerets are used for swimming and reproduction. Together, they all play important roles in the overall functioning and survival of the crustacean.
How are antennae chelipeds other walking legs and swimmerets related?
The chelipeds aren't really related to the movement of the crayfish itself, unconciously these appendages might move the crayfish, but really the chelipeds are a form of defense and used for food handling, much like the one big claw of the "Fiddler" Crab. INother words, the chelipeds are the two big dangrous looking claws of the crayfish.
Does a slime have bilateral symmetry radial symmetry or is it asymmetrical?
Slime molds do not have a fixed body shape and therefore do not exhibit bilateral or radial symmetry. They can change shape and move in an amoeba-like manner, giving them asymmetrical characteristics.
No, copepods are not producers. They are small crustaceans that primarily feed on phytoplankton and detritus, making them consumers in the food chain.
The scientific classification of daphnia is: Kingdom: Animalia, Phylum: Arthropoda, Class: Branchiopoda, Order: Cladocera, Family: Daphniidae and Genus: Daphnia. The daphnia genus is divided into several species.
Is there a spell to turn into an animal?
No, there is no scientific evidence or proven spell that can turn a person into an animal. Shapeshifting is a common theme in mythology and folklore but does not have basis in reality.
They can swim backwards in short bursts, if that's what you mean.
What is the last segment of the abdomen of a crayfish called?
The telson is the last abdominal segment of a crawfish.
If you got a triops kit, it should have food in it. I don't remember how often you have to feed it, so check the instuctions. You will also need a desk lamp or something over it, and that needs to be turned on every day. You should also regularly clean out their tank if it's one of those small ones that doesn't have a filter.
What is a predatory crustacean?
Crustaceans are animals with hard exoskeletons, like lobsters and crabs. A predatory crustacean is a crustacean that hunts prey and is not an herbivore.
What are disadvantages of radial symmetry?
The main disadvantage to radial symmetry (eyes on the side of the head as opposed to the front) is that vision is mostly two dimensional. A creature with eyes on the sides of its head can only focus both its eyes on an object if the object is directly in front of it. This makes the range (distance) and comparative size of other creatures and objects harder to judge. It also makes discerning camoflaged creatures from their surroundings much more difficult. For raptors (birds of prey), radial symmetry presents a lot of problems when hunting. These are overcome by various other natural systems such as improved spatial awareness and superlative hearing.
Can crayfish and turtuls go in the same tank?
You don't mention the species of either, so it is impossible to tell if one species will try to eat the other or not.
Why does a crayfish hide after it molts its exoskeleton?
After shedding its exoskeleton, a crayfish hides because it becomes vulnerable to injury and attacks from predators. The crayfish sheds its exoskeleton when it needs to grow. It can take two to three days for a crayfish to re-grow a new and larger one.
