Answer. Despite their ferocity, sharks tend to be wimps. Most fish exchange gases like oxygen and carbon dioxide using gills that are protected under gill covers (operculum) on both sides of the pharynx (throat). It's set up like an electrochemical cell that separates the negatively and positively charged ions. Asked by Wiki User. How many bones do you think a shark has? Sign in and be the first to comment ... and disable advertisements! / How Many Layers Does the Human Skin Have. read more. Register to get answer. annali. How many chromosomes does a zygote receive from the mother? They use them for hunting and navigation. This helps sharks distinguish between the currents around them, obstacles off on their periphery, and struggling prey out of visual view. Ask Question Asked 5 years, 9 months ago. The eyes are particularly sensitive. (mitosis and meiosis have nothing to do with producing DNA sequences) 7. That's really all there is to it. Scientists have discovered that sharks can use this sense to navigate through the open ocean by following an electrical ‘map’ of the magnetic fields that crisscross the Earth’s crust. 0 1 2. Females begin to reproduce at around 8 ft. long or more, and males at around 7.5 ft. long. Rumble — How many teeth does a shark have? Try counting! If possible, fight back. When batteries are made at the factory the cells are spot welded into parallel groups and series. Punching, kicking, stabbing and even head-butting are all ways attack victims have fought off sharks. Register to get answer. A human zygote, like most other human cells, contains 46 chromosomes. What does electricity have to do with sharks' underwater habitat? The main component of the system is the neuromast, a cell similar to hair cells present in the vertebrate ear that interact with the surrounding aquatic environment. saraandpets. WKBW . (check below) When the shark loses a tooth in the first row, the skin moves and the teeth in the back immediately goes in to replace the old one, like on a continuous conveyor belt. South American eels, better known as electric eels, can produce upwards of 600 V when hunting. Be the first to answer this question. Reproduction of the Tiger Shark. Because the pelvic fins are paired, so are the claspers. Recently, we have derived from the embryo of the spiny dogfish shark the SAE cell line, the first continuously proliferating cell line from a cartilaginous fish. To produce white blood cells. Well of course the number of cells a baby has depends on how far along it is in development. 80. They have many rows of teeth which are constantly being replaced. Best Answers. The diagram represents a cellular process. No kidding :) 2m56s. Active 5 years, 6 months ago. Who doesn't love being #1? Be the first to answer this question. They have a very slow reproductive rate, and females only breed once every 3 years. Relevance. 8 years ago. Be the first to answer! Diploid Cells are represented by. If the first shock doesn’t wear out its prey, South American eels can twist around and trap its prey and release a volley of electric charges. 0 0. Favourite answer. 2 $\begingroup$ Note: question rewritten to prevent misunderstanding and make it more answerable. However, it is clear that they are able to hear, perhaps even quite acutely, as many sharks seem to use this sensory perception to track prey that can be miles away. How is this process used in the bodies of male animals? How many chromosomes would be present in a normal body cell of a shark. The Environmental Message: Shark populations are plummeting around the globe, in large part due to fishing for shark fin for shark fin soup, and for cartilage for shark cartilage supplements. Some species can lose 30,000 teeth in their lifetime! We can tell what a shark eats by the shape of its teeth. Electroreception or electroception is the biological ability to perceive natural electrical stimuli. As a group they have maximized their potential habitats by adapting their senses to function in often adverse conditions such as dark or turbid water. Ensuring they always have a full set of razor-sharp pearly-white gnashers. This can happen in just 24 hours. I know that some small animals like C. elegans display surprising sophistication with a very small number of cells. Does Ohio have too many lanes to maintain? How many volts does an Electric Eel have? Sharks have a network of special cells that can detect electricity, called electroreceptors, in their heads. 0 1 2. This article provides a detailed overview regarding the layers of the largest organ of the body – ‘the skin’. 2n. These organs, called 'claspers', are developed along the inner margin of each pelvic fin (the paired fins located behind a shark's belly). 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