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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
Lobster
If one krill weighs 2 grams how many krill are there in 500 tons?
If 2 grams = 0.000002 (2.0 × 10 -6) tonnes, then there would be 250 million (250,000,000) krill in 500 tonnes.
How can you tell the difference between an English and American crayfish?
The difference between an English crayfish and an American crayfish is the English crayfish grows to about 3 inches long. It is red- brown in color. It's claws has a turquois and white blotch on the edge of the claw. The American crayfish grows to about 6 inches long. This crayfish is much larger and it's claws are red underneath.
scavengers are kind of like "nature's vacuum". they feed on the remains of dead animals and the remains that other animals have left behind.
Most scavengers are omnivores that will eat any plant/meat remains that contain some nutritional value, ( such as lobsters who feed on anything from small fish to seaweed and plankton)...but many are strictly carnivorous eating only animal remains...(such as the vulture).
Is there a type of fish you can keep with your pet blue crayfish?
if its a blue moon crayfish your talking about, then no. they're territorial and aggressive, and they would attack and eat any fish you put in there. however, if it was, say, a loach, then the loach would eat the crayfish. if you had Mexican dwarf orange crayfish though, they can be housed with any type of fish that will not eat them. they're very calm and docile.
Crayfish are not fish, and they love to eat fish if they can catch them.
Where do most crustaceans live?
Most live in the ocean, or along the shore. Some crustaceans, such as wood lice, have adapted to life on land.
What are the levels of organization within an ecosystem?
The levels of organizatio n within an ecosystem are: Organisms-----Population----- Community-----Ecosystem-----Biomes.
What color are Crayfish when they first shed their exoskeleton?
After molting their exoskeleton, crayfish are a deep red colour. Some may be lighter than others.
The function of the exoskeleton is to protect the internal organs and support the crayfish because it is an invertebrate.
isopods are not insects because an insect has only 6 legs and an isopod has 7
Why do pill bugs burrow in the dirt?
They burrow in the dirt because dirt is usually full of moisture compared to the air that they're burrowing away from. Pill bugs thrive in dark and damp environments.
