Crustaceans

No. An amniotic egg is a bird or reptile egg, with a shell. Only vertebrates can have amniotic eggs. ^^

By extention, mammals also have amniotic eggs, but they're reduced in placental mammals (live birth). Platypi and echidnas still lay amniotic eggs though.

In biology the term 'analogy' is used to describe a similar feature in a different organism, which of course is possible for most of a lobster's features. In the loose sense, one might say the freshwater crayfish is analogous to the salt-water lobster.

It all depends on what you want. In other words, if they are fish eggs do you want more of the same fish that are in the tank - and the same for snail eggs. The kinds of fish you have will tell you about the eggs and where they are found. Sclares (angel fish) deposit their eggs on the glass or a leaf. Cichlids usually drop their eggs into the sand. Siamese fish blow elaborate "egg nests" made of bubbles. A small gel-like patch on the side of the tank is usually snail eggs - unless you have a large snail such as a Mystery Snail.

Use its tail to swim backwards at high velocity.

snapper eat sardines greenies(pilchards or also known as threadfin hearing) and also shrimp and other assorted species. bigger snapper like bigger meals jacks, blue runners, mackeral ,lady fish ,grunts and anything yummy and smaller than them ...a two foot snapper would love a one foot mackeral....they are both smaller than me..... hmmm fiiish

krill is a food source for whales

Many things eat crayfish like sea eagles, sharks and larger fish

A yabby possesses legs which it can walk with on the floor of rivers and dams, strong claws also allow it to be quite a good climber and sometimes make it's way through strong currents. Walking and gripping though quite accurate and easy, is not a very fast way for them to move. If threatened, other than attacking with claws, a yabby may flick it's tail hard, causing it to shoot backwards through the water quite fast, an advantage for getting away, but it does make control and sensing threats more difficult, which is why it is not the usual way for it to move, even though it is much faster.

No, whelks are not crustaceans; they are a type of marine snail belonging to the class Gastropoda. Unlike crustaceans, which are part of the class Malacostraca and include animals like crabs and shrimp, whelks have a soft body and a coiled shell. They are mollusks and are known for their distinctive spiral shells and predatory behavior.

to survive in shallow water

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.

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.

Crustaceans primarily have three main body sections: the cephalothorax, abdomen, and carapace. The cephalothorax combines the head and thorax and is often covered by a protective shell called the carapace. The abdomen, located behind the cephalothorax, is typically segmented and may contain appendages used for swimming or reproduction. These body sections facilitate their diverse functions, including locomotion, feeding, and sensory perception.

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.

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.

Invertebrates are not in same phyllum but in different phylla .

Yes, crustaceans have a ventral nervous system. Their nervous system is organized around a ventral nerve cord, which runs along the belly side of the body, and includes a series of ganglia that control various bodily functions. This arrangement is typical of many arthropods, allowing for coordinated movement and sensory processing.

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.

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.

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

Approx 15-20g of protein per 100g of King Prawns

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.

no no