Explain the evolutionary relationship between the fin of a fish and the flipper of a whale.

Q: Bring out the differences between the heart of shark and that of frog?

A: The heart of a shark has two chambers: an atrium or auricle and a ventricle. Deoxygenated blood from…

Q: Describe five features of mammals.

A: Mammals are a group of warm-blooded vertebrate animals belonging to the class of  Mammalia. There…

Q: What is the select advantage of the evolution of the jaw in dogfish shark?

A: The dogfish shark or spiny dogfish is the species of the Squalidae family of sharks, which is a part…

Q: What evidence suggests that four-legged animals came from fish?

A: Evolution is a slow process which explains that how the species changes with time to survive in…

Q: compare the evolution of bony fish and jawless fish.

A: During the Cambrian explosion approximately 530 million years ago, fish began to evolve. The early…

Q: Define about Fishes: Evolution of the Jaw ?

A: An aquatic vertebrate that bears gills for respiration and lacks limbs with digits is called fishes.…

Q: Compare and contrast the characteristics of a jawless fish to those of a jawed fish.

A: Subphylum-Vertebrata can be divided into two Superclass. They are Superclass - Agnatha and…

Q: What derived characters do sharks and tuna share? Whatfeatures distinguish tuna from sharks?

A: Pieces are true, jawed vertebrates with specific organs for respiration, excretion and blood…

Q: Describe three adaptations that allow for flight in birds.

A: Birds belong to the class Aves of kingdom Animalia. They are bipedal feathered and warm-blooded…

Q: Describe when and from what group birds evolved, and list their unique traits.

A: Birds evolved during jurassic period around 165-150 million years ago. They evolved from a group of…

Q: Describe the major vertebrate adaptations that arose in fishes. Which of these features are also…

A: Fishes are the aquatic chordate animals which belong to Pisces family. Fishes are used as delicacy…

Q: Bony fishes are divided into which two groups? a. hagfishes and lampreysb. sharks and ray-finned…

A: Bony fishes belong to clade Osteichthyes, and their characteristic feature is the presence of a bony…

Q: Crayfish Compare the walking legs and swimmerets of the crayfish

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Q: Threespine sticklebacks that invaded freshwater lakes have lost their pelvic spines. What other…

A: Threespine sticklebacks (Gasterosteus aculeatus) are commonly found in the ocean. They are…

Q: Describe how the leg structure of the crayfish is modified to compensate for the limited motion of a…

A: Crayfish: The clade Astacidea, which also includes lobsters, includes crayfish, which are freshwater…

Q: Identify the kind of fin shown for each diagram. 1 2 3 4 5 DONE The shape of the caudal fin is DONE…

A: Fish are amazing animals that have evolved to live in different aquatic environments over millions…

Q: Diagram the evolutionary tree for chordates and indicate on the tree where major adaptations occur

A: Chordates aren't just vertebrates! Vertebrates are the most visible and well-known members of…

Q: Compare the body plan of a lamprey and a shark

A: Sea lamprey have a tendnecy to prey on the large fishes as well as the shark. These both organisms…

Q: Compare the frog's head to a fish. Is it evident from looking at the external features that a fish…

A: Fish head: The fish head consists of upper and lower jaw. The forward most point of the upper jaw…

Q: Whales are divided into two groups: tooth whales, such as the orca, and baleen whales such as the…

A:

Q: Name two structures found in the gut of shark but not of frog ?

A: Digestion in shark takes place by digesting the food into a semi-liquid chyme.