Question

Дайте відповідь на запитання срочьно які специфічні органи чуття мають акули? для чого вони слугують?який тип луски характерний для акули?які переваги з'явилися в риб з появою щелеп ?який тип запліднення властивий акулам?який тип розвитку притаманий акуламзараніє дякую​

Answer 1

Ответ:

Объяснение:

Внутрішнє вухо,для шукання здобичі.

Answer 2

Organs of Sensation in Sharks

Sharks have several specialized organs of sensation that help them navigate their environment and locate prey. These organs include:

1. Ampullae of Lorenzini: These are small, jelly-filled pores located on the shark's snout and head. They are sensitive to electrical fields produced by other animals, allowing sharks to detect the electrical signals generated by the muscle contractions of potential prey or injured animals in the water [[1]].

2. Lateral Line System: The lateral line system is a series of fluid-filled canals that run along the sides of a shark's body. It contains sensory cells that can detect changes in water pressure and vibrations, helping sharks detect movement and locate prey, even in low-light conditions [[2]].

3. Olfactory Organs: Sharks have a highly developed sense of smell. Their olfactory organs, located in their nasal passages, can detect tiny amounts of chemicals in the water, allowing them to locate prey, find mates, and navigate their environment [[3]].

4. Eyes: Sharks have well-developed eyes that are adapted for hunting in different light conditions. They have a reflective layer called the tapetum lucidum behind the retina, which enhances their ability to see in low-light environments. Some species of sharks also have a third eyelid called the nictitating membrane, which protects the eye while still allowing the shark to see [[4]].

Types of Scales in Sharks

Sharks have a unique type of scale called dermal denticles. These scales are made of the same material as teeth and are covered in enamel-like substance, giving them a rough texture. Dermal denticles help reduce drag in the water, allowing sharks to swim more efficiently. They also provide protection against parasites and injuries [[5]].

Advantages of Jaw Evolution in Fish

The evolution of jaws in fish, including sharks, provided several advantages:

1. Increased Feeding Efficiency: Jaws allowed fish to capture and manipulate a wider range of prey. With the ability to bite and chew, fish could consume larger and more diverse food sources, leading to increased feeding efficiency [[6]].

2. Enhanced Predatory Abilities: Jaws enabled fish to become more effective predators. They could seize and hold onto prey, tear flesh, and crush hard-shelled organisms. This allowed fish to exploit new ecological niches and become top predators in their habitats [[7]].

3. Improved Digestion: The development of jaws also led to the evolution of specialized teeth and digestive systems in fish. Different types of teeth allowed fish to process different types of food, such as crushing shells or tearing flesh. This specialization improved the efficiency of digestion and nutrient absorption [[8]].

Reproduction in Sharks

Sharks exhibit a variety of reproductive strategies, but the most common type of fertilization is internal fertilization. Male sharks have specialized pelvic fins called claspers, which they use to transfer sperm into the female's reproductive tract. The female then internally fertilizes her eggs, which develop inside her body before being laid or hatching internally [[9]].

Development in Sharks

Sharks exhibit a type of development called ovoviviparity. In this reproductive strategy, the embryos develop inside eggs that remain inside the female's body until they hatch. The eggs receive nourishment from a yolk sac, and the young sharks are born live. This type of development provides the embryos with protection and allows the female to give birth to relatively developed offspring [[10]].

I hope this information helps! Let me know if you have any further questions.