Answer:
Modern theory of evolution explains that "organisms change over time as a result of changes in heritable physical or behavioral traits". Hence this change suggests the loss of vestigial organs.
Explanation:
- Vestigial organ are those which do not have any function but is present in our body.
- According to the modern theory the genetic and physical appearance changes along with the adaptation in environment by the organism.
- So if the organ looses its function in order to sustain and adopt in the changing environment then they become vestigial and slowly disappear.
- This is the common example for the Lamarck's theory of "use and disuse".
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Answer:
a. Tetrapods were no longer tied to the water for reproduction
Explanation:
The amniotic egg is hard-shelled and is called an amniotic egg because the embro develops within a sac called amnion.
Amphibians were first tetrapods to invade the land. The need to return to water for reproduction limited their distribution. Amniotes evolved an egg that broke the tie to freshwater.
Amniotic egg contains a series of extraembryonic membranes (Amnion, allantois, chorion, yolk sac) that, among their features , takes the aquatic environment with the egg.
Hence a. Tetrapods were no longer tied to the water for reproductionis believed to be the most significant result of the evolution of the amniotic egg.
C.) Basalt is Iron-rich and responds to magnetic fields.
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Answer:
plants, animals, and other organisms
Explanation:
