When a lobster grows a new claw?

When a lobster grows a claw to replace one that was lost, it is called regeneration. It is because this is the process that occurs in means of restoring, growth or renewal in regards of the organisms, cells or ecosystems in which the lobster demonstrates as it lost it claws and grows a new one.

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Also asked, which of the following reproduces by spawning?

Marine animals, and particularly bony fish, commonly reproduce by broadcast spawning. This is an external method of reproduction where the female releases many unfertilised eggs into the water. At the same time, a male or many males release a lot of sperm into the water which fertilises some of these eggs.

Also, how does a smooth stone become smooth? Abrasion- Rocks collide causing the rocks to chip and become smooth. resistance- the sand creates resistance and acts like sand paper to smooth the rocks. motion of the water- The motion of the water pushes the rocks and causes the rocks to collide with the rocks and stream beds.

what do mollusks typically have?

Molluscs are a clade of organisms that all have soft bodies which typically have a "head" and a "foot" region. Often their bodies are covered by a hard exoskeleton, as in the shells of snails and clams or the plates of chitons. Besides having yummy soft parts, molluscs often have desirable hard parts.

Which of the following presents the stages of the water cycle in the correct order?

Sunlight heats water, evaporates, water cools, condensation, precipitation.

Related Question Answers

When a lobster grows a claw What is it called?

When a lobster grows a claw to replace one that was lost, it is called regeneration. It is because this is the process that occurs in means of restoring, growth or renewal in regards of the organisms, cells or ecosystems in which the lobster demonstrates as it lost it claws and grows a new one.

What has the greatest population in a balanced aquatic ecosystem?

Fish has the greatest population in the ecosystem. In an ecosystem, rocks are required for safe house and plants give oxygen to angle. A biological system is adjusted when the normal creatures and plants and non-living parts are in concordance i.e. there is nothing to aggravate the adjust.

When scientists measure a liquid's resistance to flow they are measuring the liquids?

Viscosity is a measure of the resistance of a fluid to deformation under shear stress. It is commonly perceived as "thickness", or resistance to pouring. Viscosity describes a fluid's internal resistance to flow and may be thought of as a measure of fluid friction.

Do clams feel pain?

Translation: Bivalves have a very simple nervous system which is not aggregated in anything like a brain. My conclusion: Bivalves do not have hardware or response consistent with the ability to feel pain. Because they have no brain, or central processing unit for stimuli, there is no 'there', there.

Are jellyfish molluscs?

Jellyfish. Jellyfish, any planktonic marine member of the class Scyphozoa (phylum Cnidaria), a group of invertebrate animals composed of about 200 described species, or of the class Cubozoa (approximately 20 species).

What are the 6 molluscs?

Molluscs include mussels, scallops, oysters, clams, snails, periwinkles, whelks, squid and octopus. Marine molluscs and crustaceans are often collectively referred to as "shellfish". An allergy to molluscs can be severe with a risk of anaphylaxis.

Are shrimp mollusks?

Crustaceans are aquatic animals that have jointed legs, a hard shell and no backbone, such as crab, crayfish, lobster, prawns and shrimp. Most molluscs have a hinged two-part shell and include clams, mussels, oysters and scallops, as well as various types of octopus, snail and squid.

Do mollusks have brains?

In general, mollusks have 3 body regions: a head, a visceral mass, and a "foot." The head contains the sense organs and "brain," while the visceral mass contains the internal organs. Mollusks have well developed body organs (nervous system, circulatory system, respiratory system, etc.) but lack body segmentation.

What are the 7 classes of mollusks?

Phylum Mollusca is classified into seven classes;

• GASTROPODA (single shelled cowries, cones etc)
• BIVALVIA ( two shelled like clams, mussels etc)
• APLACOPHORA (solenogasters)
• MONOPLACOPHORA (segmented limpets)
• POLYPLACOPHORA ( or Amphineura as it was earlier called- Chitons)
• SCAPHOPODA (tusk shells)

What is the difference between a snail and a slug?

Snails and slugs are both part of the same class of creatures called gastropods. The most obvious difference between snails and slugs is the fact that snails have shells. A snail's shell is like a home it carries around on its back. Slugs, on the other hand, have no shell.

How are mollusks born?

HOW DO MOLLUSKS REPRODUCE? Mollusks reproduce sexually. Slugs and snails are hermaphrodites (possessing both male and female organs), but they must still mate to fertilize their eggs. Most aquatic mollusks lay eggs that hatch into small, free-swimming larvae called veliger.

How are mollusks important to humans?

Mollusks are important in a variety of ways; they are used as food, for decoration, in jewelry, and in scientific studies. They are even used as roadbed material and in vitamin supplements.

Why are rocks smooth at the beach?

A beach forms when waves deposit sand and gravel along the shoreline. Some beaches are made of rocks and pebbles. Over time they are worn smooth from being rolled around by waves. The rocks usually reflect the local geology.

How do rocks get rounded?

Abrasion causes rocks to grind down and become rounder, but does the grinding reduce the size of rocks or is it that smaller rocks are simply more easily transported? First, abrasion makes a rock round. Then, only when the rock is smooth, does abrasion act to make it smaller in diameter.

Why are stones round?

The pebbles become rounded, or rather they become polished and smoothed due to not just water but the tumbling effect, similar to the tumbling that is done to polish gem stones. The original shape of the stone will dictate the shape of the pebble, with the more exposed surfaces receiving the most abrasion first.

How long does it take for a rock to erode?

Given that the rock is only about 25 metres along the lesser axis, and that chemical and weathering attack will occur on all sides, that should give a 'demolition rate' of about 6000 to 7000 years. But that's only chemical erosion. There is also the physical erosion to consider.

Why are rocks and pebbles found in a river usually smooth?

These pebbles form as the flowing water washes over rock particles on the bottom and along the shores of the river. Because river current is gentler than the ocean waves, river pebbles are usually not as smooth as beach pebbles.

How are stones made?

For millions of years, a combination of heat and pressure created blocks of natural stone, including granite, marble, travertine, limestone, and slate. As the earth's crust began to grow and erode, it pushed minerals up from its core, forming massive rock deposits, which we refer to as “quarries”.

What happens to rocks in a river?

Weathering of River Rocks In the river, water flows constantly over the rocks. These tiny bits of broken stones hit the rocks at the bottom of the river, breaking off pieces of them, which the river carries away. The faster the water moves, the more sediment flows over the river rocks, hastening weathering.