What structure are the gills of a crayfish attached to?
The gills of a crayfish are attached to the base of the legs, specifically the appendages of the abdomen. Each pair of walking legs has a branchial chamber where the gills are located.
Hermit crabs fight by using their claws to pinch and grab each other. They may also use their shell as protection and shelter during fights. The goal of the fight is often to establish dominance or access to resources such as food or mates.
What is the function of a crayfish's antenna?
The crafish's antennules are the smaller antennas and they aid in balance and provide taste and touch. The larger antennas called the antennae are much more sensative then the antennules, providing the crayfish stronger sense of taste and touch.
How do you string a brine clutch?
I would suggest a railroad pattern. 2 leathers down the sides, mesh only in between leathers, three shooting strings. I would suggest a railroad pattern. 2 leathers down the sides, mesh only in between leathers, three shooting strings.
Why are crayfish classified as protostomes?
Crayfish are classified as protostomes because they are a type of invertebrate animal that develops their mouth before their anus during embryonic development. This characteristic is a key feature of protostomes, which also includes other invertebrates like insects and mollusks.
Why are there only 3-5 trophic levels in an ecosystem?
There are only a few trophic levels in an ecosystem because as a trophic level consumes, it only reiceves 10% of the energy in the previous level.
There are only few trophic levels because as the feeding levels continue (like grass --> rabbit --> hawk) energy is lost. Most of it, you learn, is lost through heat. By the time it gets to the top level, there just isn't enough energy to continue the food chain. (that's what that is). I know its hard to imagine that grass has more energy than a hawk but the grass gets energy from the sun which is a lot of energy. The person before did mention the 10% thing which is also true.
What is the name of this animal that spends its larval stage inside a seed pod?
This animal is called a seed beetle (Megalotomus quinquespinosus). It lays its eggs inside developing seeds or pods, and the larvae develop within the seed pod before emerging as adults.
What does a crayfish eye look like?
A crayfish eye is small and typically black in color. It has a compound structure with many tiny lenses that allow the crayfish to see movement and changes in light. They are located on stalks on either side of the crayfish's head.
Roly polys, also known as pill bugs or woodlice, do not truly hibernate. Instead, they enter a state of dormancy during harsh conditions, such as extreme cold or drought. They can survive by finding a sheltered spot or burrowing underground until conditions improve.
How many chromosomes are there in the zygote of a crayfish whose diploid number is 112?
The zygote of a crayfish with a diploid number of 112 chromosomes would contain 56 chromosomes. This is because the zygote receives one copy of each chromosome from each parent, resulting in half the number of chromosomes of the diploid number.
How do you pick up a crawdad without pinching yourself?
To pick up a crawdad without getting pinched, approach it from behind and grasp it firmly but gently around the body between the claws. Avoid grabbing the claws or the tail to prevent being pinched. Holding them securely and steadily will usually prevent them from pinching you.
Worm like animal with many pairs of legs?
You may be referring to a millipede, which is a long, slender, worm-like animal with many pairs of legs. Millipedes can have anywhere from 30 to 400 pairs of legs, and they are known for their distinctive cylindrical body shape and segmented exoskeleton. These creatures are not insects, but belong to the class Diplopoda.
A cheliped is a specialized claw-bearing appendage found in crustaceans such as crabs and lobsters. It is used for capturing and handling food, defense, and grooming. The term "cheliped" comes from the Greek words "chela," meaning claw, and "pous," meaning foot.
What is the difference between a crayfish antennule and antennae?
There is no difference between an antennule and antennae. An antennule is just a small antennae. Antennules are basically the same, but just in size that they vary. They both have the same purposes, the antennae is the plural form of saying the bigger antenna.
What object or image best illustrates radial symmetry?
A sunflower is a good example of an object that illustrates radial symmetry. The seeds of the sunflower radiate outwards from the center, creating a symmetrical pattern that is repeated throughout the entire flower.
How do all members of the Phylum Ciliophora move?
Members of the Phylum Ciliophora move using cilia, which are short, hair-like structures covering their surface. These cilia beat in coordinated patterns to create movement by either propelling the organism through the water or generating feeding currents to capture food particles.
How many pair of antennae do crustaceans have?
Crustaceans have two pairs of antenne, which can be found on the first two segments of the head. These antenna are often used as sensory units, but can also be used for things such as swimming.
This is kind of tricky. Krill are actually small shrimp, but capable of purposeful swimming. Plankton, by definition, are all the little things in the water, some plants, some animals, that are not capable of purposeful swimming. That is, even if they swim a little, it is not enough to move them significantly from place to place relative to ocean currents. Larval krill would be part of the planktonic community, as would the larvae of many marine creatures. But adult krill are not plankton.
Size comparison: Krill can grow to over 20cm in length and feed primarily on the mostly microscopic plankton.
Crustaceans grow by molting, which is the process of shedding their exoskeleton in order to grow larger. When they molt, they emerge with a soft exoskeleton that eventually hardens. This process allows them to accommodate their increasing size as they continue to grow.
Prawns and shirmps belong to the phylum arthropoda and organism with backbones belong to the phylum chordata. Therefore prawns, shrimps (crustaceans) and insects do not have a backbone.
Are krill a carnivore herbivore or omnivore?
Krill are omnivores, as they feed on both plants and animals. Their diet primarily consists of phytoplankton, zooplankton, and small fish.
What does bilateral symmetry enable?
Bilateral symmetry allows for the animal to have directed movement, which can help when searching for food or escaping predators. Also, it allows for quicker and precise response to stimulation, since the nervous system is cephalized and much more complex than in organisms without bilateral symmetry.
Crawdads in the Pacific Northwest are usually active in the evenings starting in late June all the way till about October. The water might be dangerous this time of year, but give it a couple weeks and it will be just right.
No, prawns are not herbivores. They are omnivores, meaning they eat both plant matter and other animals. In the wild, prawns typically feed on small organisms such as plankton, algae, and small invertebrates.
What kind of mouth does a crayfish have?
A crayfish has a pair of mandibles and several pairs of maxillipeds in its mouth that help it to crush food. The mandibles are like small pincers, while the maxillipeds are used to handle and manipulate food before it is eaten.