0
What else can I help you with?
What two external features are shared by fish and amphibians?
Amphibians are cold-blooded animals that have a backbone, lungs, and permeable skin. They have flat skulls that are also wide, movable eyelids,Êand limbs. Frogs toads and salamanders are amphibians belonging to different orders.
Which group of fishes are most closely related to the ancestral amphibians?
The group of fishes most closely related to ancestral amphibians are the lobe-finned fishes, which include the coelacanths and lungfishes. These fishes share certain characteristics with amphibians, such as limbs with digits and lungs or lung-like structures, indicating a close evolutionary relationship.
What is the process where amphibians release their sex cells in the water?
The process where amphibians release their sex cells in the water is called spawning. During spawning, male amphibians release sperm into the water, which then fertilizes the eggs released by the female amphibians. This is a common reproductive strategy for many amphibian species.
What term refers to animals with four limbs and movable joints?
The term that refers to animals with four limbs and movable joints is "tetrapods." Tetrapods include a wide range of vertebrates, such as amphibians, reptiles, birds, and mammals. They are characterized by having two pairs of limbs that are adapted for various forms of locomotion. This evolutionary adaptation has allowed tetrapods to thrive in diverse environments on land and in water.
What are salamaders?
Salamanders are amphibians with slender bodies, long tails, and moist skin. They are usually found near water sources, as they require moisture to survive. Salamanders come in a variety of colors and sizes, and are known for their ability to regenerate lost limbs.
Why do amphibians have limbs?
The limbs for Amohibian is Weak legs...
What amphibian has no limbs?
The caecilians are limbless amphibians.
At which stage of metamorphosis do amphibians develop limbs?
Fifth
How limbs do amphibians have?
4, except caecilians have none.
How are caecilians different from other amphibians?
Caecilians have no limbs or appendages.
What do amphibians have that bony fish do not?
Well they have limbs and lungs, which I would consider more complex.
Why can reptiles carry more body mass than amphibians?
because their limbs and bones are stronger than those of amphibians
What are 2 adaptatoins amphibians have for moving on land?
Strong skeletons and muscular limbs.
What are amphibians the ancestor if?
Amphibians originated from from a tetrapod. Early tetrapods were like fish but may have had limbs to move on the bottom of marshes. In later fossils, the limbs were found further below to lift the animal off the ground. Eventually, amphibians arose the ability to breath through the air as well as water.
What is the structure of defense for an amphibians?
Amphibians have a variety of defense mechanisms. Some species have toxic skin secretions to deter predators, while others have the ability to change color for camouflage. Many amphibians also have the ability to regenerate lost limbs or tails, which can help them escape from predators.
What is a tetrapod?
A tetrapod is a vertebrate animal with four limbs. "Tetra" means "four" and "pod" means "foot". Amphibians, reptiles, birds and mammals are all tetrapods; even snakes and other limbless reptiles and amphibians are tetrapods because they descended from animals which had four limbs. Whales and other cetaceans are also tetrapods because they are mammals have two front limbs and the two hind limbs are vestiges.
How many limbs how many limbs does a crayfish have?
8 major limbs
