What Does Analogous Structure Mean?
Analogous structures are features of different species that are similar in function but not necessarily in structure and which do not derive from a common ancestral feature (compare to homologous structures) and which evolved in response to a similar environmental challenge.
What are some examples of analogous structures?
- Bird Insect and Bat Wings. …
- Fish and Penguin Fins/Flippers. …
- Duck and Platypus Bills. …
- Cacti and Poinsettia Plant Structures. …
- Crab and Turtle Shells. …
- Turtle and Bird Beaks. …
- Octopus and Human Eyes. …
- Shark and Dolphin Coloring.
What is example of analogous?
For example the wings of a fly a moth and a bird are analogous because they developed independently as adaptations to a common function—flying. The presence of the analogous structure in this case the wing does not reflect evolutionary closeness among the organisms that possess it.
What is analogous and give an example?
Similar or alike in such a way as to permit the drawing of an analogy. … The definition of analogous is something that is like something else in certain ways. A diamond and ice are both hard clear and reflect light so a diamond is an example of something being analogous to ice.
How do you tell if a structure is analogous or homologous?
Homologous structures share a similar embryonic origin analogous organs have a similar function. For example the bones in the front flipper of a whale are homologous to the bones in the human arm. These structures are not analogous. The wings of a butterfly and the wings of a bird are analogous but not homologous.
The duck-billed mammal is related to reptiles and birds a study finds. The genome of the platypus—our most distant mammal relative—has been decoded and analyzed researchers reported today. The duck-billed mammal has a genetic affinity with both reptiles and birds according to a new study.
Which statement best explains analogous structures?
B is correct. Analogous structures are structures which perform the same function but have different ancestry.
What does analogously mean?
: similar or comparable to something else either in general or in some specific detail Timbre in music is analogous to color in painting.—
What is analogous tissue?
Alternatively changes in gene expression of two completely unrelated species can eventually result in very similar anatomy and physiology in certain tissues. Such structures are analogous or homoplastic since they are derived from differing ancestors but have very similar functions.
How do you explain analogy to a child?
An analogy compares two things that are mostly different from each other but have some traits in common. By showing a connection between two different things writers help to explain something important about one thing by using a second thing you already know about.
Homologous Structures vs Analogous Structures | Key Differences
Homologous & analogous structures | Heredity & Evolution | Biology | Khan Academy
Homologous vs. Analogous Structures