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Are fish fins and whale flippers analogous?
Fins of fish and flippers of whales are analogous organs. They perform the same function but they have different basic structure.
Are fish and whales homologous?
Similar traits that are due to common ancestry are called “homologous traits.” Other types of organisms have similar traits but did not evolve from a common ancestor that had those traits. Fish and whales are a classic example of convergent evolution.
What are the two characteristics of each skull that could contribute to the inference that these are all related species?
Give two similarities between each of the skulls that might lead to the conclusion that these are all related species. The skulls all have a similar ridge that protrudes from the top. The overall shape is the same. Each skull has a set of flattened teeth.
Which are examples of homologous structures the fins of fish and whales?
The whale’s flipper, tail flukes and fish fins are analogous structure because have different structural formation but they perform the same function. Flipper and tails are used in locomotion in the whale and helps the whale in propelling while fins in fish assist the fish in swimming.
Is human arm and alligator homologous?
Humans share their structure with some vertebrate animals these structures are called homologous structures. For example, a human arm and alligator forelimb both are having the same homologous structures. Alligator forelimb classified into Radius, Ulna, and humerus.
Is human arm and whale flipper homologous?
An example of homologous structures are the limbs of humans, cats, whales, and bats. Regardless of whether it is an arm, leg, flipper or wing, these structures are built upon the same bone structure. Homologies are the result of divergent evolution.
What is the biggest change in skull anatomy?
2-increase in the size of the skull; a shift from cusps to complex ridges on the grinding surface of the premolars and molars, elongation of the face and of the space between the incisors and cheek teeth, an anterior shift of the cheek teeth so they lie forward of the eye, a deep lower jaw bone.
What are the two characteristics of each skull?
The skull all have a similar ridge that protrudes from the top. the overall shape is the same b. Each set has flattened teeth . each skull has a large diastema, or gap between the front and back teeth.
How is the flipper of a whale similar to a fish?
Explain the evolutionary relationship between the fin of a fish and the flipper of a whale (a mammal). These structures are formed in similar ways during embryonic development and share like arrangements; however, they have somewhat different forms and functions. They are called homologous structures.
What’s the difference between a fin and a flipper?
is that flipper is in marine mammals such as whales, a wide flat limb, adapted for swimming while fin is (ichthyology) one of the appendages of a fish, used to propel itself and to manoeuvre/maneuver or fin can be (us|slang) a five-dollar bill.
Which is the primary appendage of a fish?
The caudal fin is the primary appendage which is used for locomotion in many fishes. The caudal fin is also known as tail fin or a median fin which is usually homocercal or heterocercal.
Why do fish have different types of fins?
Fins help to swim and maintain the balance of the body. Fins also help to identify the fish species. Different types of median and paired fins are described below: Fish showing different types of fins.