1. HOMOLOGOUS ( morphological and anatomical evidences ) .These are the organs that have same basic structural plan and origin but different functions.
2. ANALOGOUS
These are the organs that have different origin and structure plan but same function
Tendrils of a plant and phylloclades of Opuntia are analogous structures. They serve similar functions (support and water storage) but have different origins. Tendrils are modified leaves or stems, while phylloclades are modified branches.
Its in your txt book you dumb freshman
Analogous means that the structures have different origins, but they do the same things. Homologous means the opposite: that they have the same origins but are adapted to do different functions.
Biologists need to distinguish homologous traits (traits inherited from a common ancestor) from analogous traits (similar traits that result from convergent evolution) to accurately reconstruct evolutionary relationships and understand the evolutionary history of organisms. This distinction is crucial for inferring patterns of descent and making evolutionary inferences.
Homologous chromosomes are a set of chromosome pairs, one set maternal and the other paternal, that pair up during meiosis, the production of reproductive cells. The pairs have the same genes in the same locations, though once spread out the different pairs segregate out. the biggest way that these chromosomes change up is by exchanging lengths of the material.
Analogous!
analogous
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.
Homologous organs have similar looking structure and similar origin but different functions . Whereas analogous is just the opposite analogous organs are those that have similar function but different origin and structure
Structures
pickles :3
Homologous = same origin, different function (arms vs. wings) Analogous = same function, different origin (panda thumb)
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.
pickles :3
Homologous organs have similar embryonic origin and basic structure whereas Analogous organs have different embryonic origin and basic structure. Homologous organs may look different and may perform different function; e.g., forelimb of a man and flipper of a whale. Whereas Analogous organs look alike and perform same functions; e.g., Wings of birds and insects.
Homologous Agreeing Comparable Kindred Equivalent Related
Homologous means that there is a body part that has the same makeup of a body part of a different organism. Therefore, mosquitos and horseflies have mouth parts that are homologous.