Yes they are.
I disagree. Even if they ultimately come from a common ancestor, in order to classify two characteristics as homologous, they have to have some similarities. After millions of years of being in the oceans, the fins of whales have evolved such that they are not at all similar to cats' legs.
Penguin flippers and bat wings have evolved independently from one another. If it was another bird with the penguin, their wings would be homologous traits since all birds have wings, but not all mammals have wings. Therefore these two traits are analogous since they are similar to one another but bat wings evolved independently.
Yes, they are.
One sense of the word homologous pertains to organs (or appendages): Similar in position, structure, and evolutionary origin but not necessarily in function; for example, a seal's flipper is homologous with the human arm.
They are homologous structures mostly because of its fins, they look like only one bone but is actually a structure of a hand inside
No, but only birds have feathers.
yes
Among, say, mammals they are homologous, but the wing of an insect and a bat are analogous.
Analogous Features.
They are both. They are homologous because they are both examples of a vertebrate forelimb. They are analogous because they were adapted for flight independently of one another.
In biology, homologous structures are defined as structures which serve the same purposes because they evolved from the same source (divergent evolution), the opposite of analogous structures, which serve the same purpose but evolved through convergent evolution. Birds' wings and bats' wings are both homologous and analogous. As wings, the two are analogous, but as forelimbs, the two are homologous.
A penguin has wings that look like flippers. Penguins (several species) use their flippers to swim under water.
There are a few different similarities between the wing of a butterfly and the wing of a bat. Both are used to fly for example.
Homologous = same origin, different function (arms vs. wings) Analogous = same function, different origin (panda thumb)
The wings of a penguin are actually called flippers. They use them to swim and propel themselves through water. Penguins can not fly.
They are different because homologous structures have the same structure, but serve a different function. Like mammal arms(human, bat and whales). Analogous structues are different structures, but serve the same function. For example, bat wings and butterfly wings.
They are analogous. Both wings have developed from different origins, adapted for the same job, using different kinetics. "Analogous" is the only word you may use to define these wings. When you consider bat wings and butterfly wings, none of the other adjectives are scientifically correct.
Yes. Though they both enable the organism to fly, they are different on the inside. Bird wings have tiny bones in them, while butterfly wings are kept rigid by fluid pressure. Therefore, they have a similar function but different structures and are analogous.
On land they waddle. In the water they swim using their wings like flippers.