Identify some homologous structures found on sharks?

1. Do sharks have any homologous structures?
2. What are 3 examples of homologous structures?
3. Is a shark fin a homologous structure?
4. What are 2 examples of homologous structures?
5. Do sharks have flippers?
6. Are flippers of a shark and whale homologous or analogous structures?
7. Which pairs of animals show homologous structures?
8. How do you identify a homologous structure?
9. What is homologous structure in animals?
10. Are dorsal fins on sharks and dolphins homologous?
11. Are whale flippers and fish fins homologous?
12. Are fish and dolphins homologous or analogous?
13. Are octopus limbs and human limbs homologous structures?
14. Which of the following pairs are best examples of homologous structures?
15. Is a elephant homologous or analogous?

Do sharks have any homologous structures?

Evolution. Homologous structures are ones that are passed down from a common ancestor - they are characteristics that show related origins. Sharks and dolphins are made up of eukaryotic cells; their common ancestor remains a mystery, and most of their similarities are analogous structures.

What are 3 examples of homologous structures?

Following are some examples of homology: The arm of a human, the wing of a bird or a bat, the leg of a dog and the flipper of a dolphin or whale are homologous structures. They are different and have a different purpose, but they are similar and share common traits.

Is a shark fin a homologous structure?

Dolphins are mammals that have live births and have fins with a homologous structure to human arms. Sharks are fish that lay eggs and have fins with different bone structure than what is found in dolphins and humans. ... True or False: Structures that have different morphology but similar functions are homologous.

What are 2 examples of homologous structures?

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.

Do sharks have flippers?

Most sharks are designed for efficient motion through the water. They have three types of median fins (dorsal, anal, and caudal) and two sets of paired fins (pelvic and pectoral). ... As with any other aspect of shark biology, there are differences in fins among different species.

Are flippers of a shark and whale homologous or analogous structures?

You really are an expert on homologies and analogies! Sharks' and dolphins' similarities (body shape, fin, and flippers) are analogies — traits that each lineage evolved independently.

Which pairs of animals show homologous structures?

A common example of homologous structures is the forelimbs of vertebrates, where the wings of bats and birds, the arms of primates, the front flippers of whales and the forelegs of four-legged vertebrates like dogs and crocodiles are all derived from the same ancestral tetrapod structure.

How do you identify a homologous structure?

Homologous structures share a similar embryonic origin. Analogous organs have a similar function. For example, the bones in a whale's front flipper are homologous to the bones in the human arm. These structures are not analogous.

What is homologous structure in animals?

Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants. Figure below shows the hands of several different mammals.

Are dorsal fins on sharks and dolphins homologous?

Dorsal fins of sharks and dolphins are analogous structures. Sharks are cartilaginous fishes, whereas dolphins are cetacean mammals. These two groups are related, but distantly.

Are whale flippers and fish fins homologous?

Fins of fish and flippers of whales are analogous organs. They perform the same function but they have different basic structure.

Are fish and dolphins homologous or analogous?

Homologous-Dolphins and fish are both vertebrates, thus they have a similar recent evolutionary history, causing them to have similar body shapes.

Are octopus limbs and human limbs homologous structures?

Homologous tetrapod limbs (6 of 6)

Tetrapod and octopus limbs evolved independently after their point of common ancestry, so they were not inherited from a common ancestor. Therefore, they are not homologous.

Which of the following pairs are best examples of homologous structures?

The correct answer is (B) Bat wing and human hand. Homologous structures are similar structures that arise through divergent evolution from a common...

Is a elephant homologous or analogous?

For example, elephants' tusks and beavers' teeth are homologous structures, though they look quite different. Conversely, structures that look similar are not necessarily homologous. Similar structures that evolved independently are called analogous structures.