0
Sharks
When many think of sharks, they think of the movie Jaws or a dangerous man-eating fish. In reality, sharks is a large group of fish that includes very small to much larger fish. Some can be harmful to man and others are harmless. To delve into this interesting and diverse group of cartilaginous saltwater fish that have sharp teeth and a bad reputation, ask your questions in this category.
5,520 Questions
What do amphibians have that bony fish do not?
Well they have limbs and lungs, which I would consider more complex.
What is the food chain of the great white shark?
- tnx frm: M*ll*n*
How does a bony fish use the swim bladder?
Helps maintain Fish buoyancy ( from further down in the water or to surface)
The swim bladder can fill by gulping air at the surface, this enables the fish to float or empty by loosing air from the swim bladder through a pneumatic duct (a pneumatic duct is an internal gas filled organ) connected to the oesophagus, this enables the fish to sink.
What is the difference bony fish and cartilaginous and jawless fish?
Ray-finned fish have "true" bone skeletons, where as the cartlaginous fish have...cartilage instead of bone as their skeletons.
Do sharks migrate when it gets cold?
most sharks can only live in certain temperature water which is mainly warmer water and if the water got colder yes they would migrate to warmer water or they would die which is why they are having suspicions of great white sharks and other sharks coming in to Britain as the ice caps are melting.
What are some threats to the great hammerhead sharks?
the teeth and the tip of the head and/or nose can cause major injuries or death
there are many types of hammer head sharks and not all of them are endangered. ask a more specific question
What are water breathing fish called?
fishes. All fishes breath in the water. They cannot survive outside of water except for few fishes which have adapted to breath air like the mud skipper fish. The only reason fishes are able to breath under water is because of their gills
What is the shape of hammerheads sharks body?
- Their head is shaped like a hammer, hence the name.
- Their heads are shaped like hammers, an eye on each end. They can't look forward, but can swing their hammer shaped head from side to side to search for food.
- It looks slightly thinner than an ordinary shark but the head is shaped like a "T" with the eyes at the ends of the cross member. Sort of.
Like a regular shark-they just have eye stalks. See below-
Why did the shark attack Bethany Hamilton?
The jaw of the shark matched the bite on her arm. Read her book Soul surfer, it explains a lot.
How do fish use their swim bladder to float or sink?
If the bladder is filled with gas it will expand slightly and the fish will gain size but loose some relative weight so it will rise in the water. If the opposite happens the bladder shrinks in size therefore the fish has less size for its relative weight and the fish sinks.
Fish's swim bladder affect its overall density by increase the fish's volume, therefor the fish's overall density decreases, it keeps the fish from sinking in water.
By adjusting the amount of gas in the swim bladder, a fish can change its buoyancy allowing it to move up and down in the water column. A submarine can pump water into and out of its ballast tanks to achieve the same effect.
Does the thresher shark have any predators?
- Humans are known predators of sharks most commonly included in the diets of Asian cultures. i.e. shark fin soup.
- There are many types of small sharks that are no doubt part of the diet of other predatory animals in the ocean. Also sharks have been observed eating other sharks. The Sharks predators are Dolphins, other sharks and people! But people are the worst.
- Humans are the worst, but Dolphins will take a full run at a shark and knock the breath out of them with their rostrums(mouth part) and if the the shark is stunned enough and it doesn't breath correctly there are times they will just drift to the bottom of the ocean after a Dolphin attack and die. However, Dolphins will usually only attack if they feel they are threatened, as sharks are predators to Dolphins as well.
- Orca whales are also shark killers. They are the apex predators of the ocean.
Are sharks attracted to blood?
Yes. Pretty much. That's what they eat so they do come around when blood is in the water. BY THE BIGGEST LIGHTNING THIEF FAN IN THE UNIVERSE!
no
no no, if it lays eggs, it is not considered to be a mammal.
How did Bethany Hamilton survive that shark attack?
her friends and her family was by her side
she had god with her the whole time god loves you and everyone
"God will never forget you or pretray you" that is what the guy in the ambulance said to Bethany Hamilton to make her feel better
it is in the book
Soul Surfer
Written By
Bethany Hamilton
Well no but people say but no because there are garbege that looks like sharks but no i have the game
That depends on the type of shark. BTW in case you were wondering, it is not true that all (most) sharks can never stop swimming and must always be moving otherwise they die. But it is true that they need flowing water.
How do you make a Maori bone carving?
Each design has its own meaning and when combined can tell a story the carver wants to tell. Many carvings represent ancestors of the iwi (tribe) they are in, some are manaia (guardians) to protect those around them.
they keep the oceans food chain balanced meaning there's a lot of seafood 4 us
How do you get passed the giant squid in Endless Ocean 2?
Well you can either go through the Piranha's by feeding them every so often whilst proceeding through, or, you can simply swim around them on the far right, which is easier and is what I personally find the best option.
Some can leap out of the water and land on the shore but not many do.
no you cannot milk a bear, whatever made you think of that?
Depends on the species of shark and the age of both animals. A full grown orca would be too big for any shark, but there are some shark species which could defeat a young orca.
What is the help word for shark lagoon's game teasing holidays?
The help word for Shark Lagoon's game teasing holidays is bike.
