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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
No, krill do not have pinchers. They are small crustaceans that belong to the order Euphausiacea and lack the large pincers typically found in some other crustaceans, like crabs and lobsters. Instead, krill have a more streamlined body with antennae and other appendages adapted for swimming and feeding in the ocean. Their primary feeding mechanism involves filtering plankton from the water rather than grasping prey.
Do only female lobsters have tamales?
Yes, only female lobsters produce tamales, which are the eggs or reproductive organs found in the female's body. These tamales are often visible in the form of a greenish substance when cooked. Male lobsters do not have tamales, as they do not produce eggs.
What is the difference between large shrimp and prawns and are all prawns edible?
The main difference between large shrimp and prawns lies in their gill structure and body shape; shrimp have a more curved body and branching gills, while prawns have a straighter body and lamellar gills. Additionally, prawns typically have larger claws than shrimp. Most species of prawns are edible, but some may not be suitable for consumption due to their habitat or potential toxicity. It's always best to source prawns from reputable suppliers to ensure they are safe to eat.
What are the appendages on the underside of a crustacean called?
The appendages on the underside of a crustacean are called "pleopods" or "swimmerets." These structures are primarily used for swimming and can also play a role in reproduction, as they may assist in carrying eggs. In some species, they can vary in size and function, depending on the sex and developmental stage of the crustacean.
Why are insectsarachnids and crustaceans in the same phylum?
Invertebrates are not in same phyllum but in different phylla .
Krill primarily obtain energy by consuming phytoplankton, which are microscopic plants that perform photosynthesis in the ocean. They feed on these tiny organisms by filtering them from the water using their specialized appendages. In addition to phytoplankton, krill may also consume small amounts of zooplankton and detritus. This diet provides them with the carbohydrates, proteins, and lipids necessary for their energy needs.
What disadvantage in crayfish molting?
One significant disadvantage of crayfish molting is the vulnerability they face during the process. When crayfish shed their exoskeleton, they are soft and defenseless, making them easy targets for predators. Additionally, molting requires a considerable amount of energy and resources, which can impact their overall health and survival if conditions are not optimal. This period of increased risk and energy expenditure can affect their growth and reproductive success.
What is the morphological differences between a grasshopper and a prawn?
Hugely different organisms.
External obvious differences:
Prawns have swimmerets (pleopods), a tailfan (uropods flanking telson), rostrum, claws (chelated pereiopods), stalked eyes, long antennae, antennules.
Grasshoppers have wings, large hind legs (femurs?), short antennae, unstalked eyes.
Ignore morphology, if it's living underwater it isn't a grasshopper. ;)
Rollie pollies drink water. It takes a frieken wis kid to figure that out
The bull trout eats bugs and plants. While they do eat bugs and not sure about plants, they also feed off of other spawning fish and fish eggs. Kokanee are probably the choice food for a bull trout.
What crustacean that uses its pigmentation for communication?
Mantis shrimp are one type of crustacean that uses pigmentation for communication. They will often change or flicker colors during courtship and mating.
