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A structure with similar shape but a different use
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Why are homologous pairs called tetrads?
Homologous pairs are called tetrads because these pairs are maid up of a four-part structure. Tetrad literally means a group of four.
How are analogous and homologous structures different?
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.
How does homologous structure support the theory of evolution?
Evolution is the process of deriving species from other species, forms from other forms. Homologous structures are structures in organisms that share the same components. A good example is the vertebrate limb - it's clear that our arm, a bat's wing, a dolphin's flipper and a mole's digging paw all share the same identifiable bones. This supports the idea they're all derived from a structure in a common ancestor, as opposed to being created independently.
How do sister chromatids differ from homologous chromosomes?
Sister chromatids are identical while homologous chromosomes are merely similar.They are different because they separate the cells and then they become babies but only the homologous chromosomes do.
How do analogous structures and homologous structures differ?
Homologous features of animals are a lot more recent in contrast to evolution, where as analogous dates far back. Homologous features are similar in structure, but perform different functions, such as the human hands and dolphin flippers, which makes room to allow recent evolution comparisons while analogous consists of wings of a bee and a bird, which are completely different. When trying to determine evolutionary relationship between two species, biologists concentrate on homologous features, as analogous features would be considered useless in this case.
Body parts similar in origin and structure are what?
homologous
Is a human appendix a homologous structure?
The human appendix (a small sac near the junction of the small and large intestine) is homologous to a structure called the "caecum", a large, blind chamber in which leaves and grasses are digested in many other mammals.http://scienceline.ucsb.edu/getkey.php?key=3246
How would you use homologous structure in a sentence?
I learned about homologous and heterozygous structures in Biology.
What does it mean when dinosaurs have homologous structure?
Two samples are said to homologous, in this context, when they are both very similar in structure and shape and more than likely function.
What is a homologous structure to the human forearm?
the leg of a horse
Body part similar in origin and structure?
homologous
What homologous structure does the arthropod have for liquid excretion?
Malpighian.
Does whales and sharks and dolphins have the saem homologous structure?
no.
Two species have homologous structures what do these homologous strcutures show about the evolutionary relationship between the two species?
The presence of homologous structures (for example, the bone structure in chimpanzee arms, human arms, and whale flippers) indicates that the species sharing that homologous structure share a common ancestor.
What homologous structure that is greatly reduced to size?
Vestigial Organs
Homologous structure between birds and dolphin?
they live for a while
What type of evidence is the forelimbs of flightless birds?
An homologous structure
