Answer and Explanation:
According to this theory, the young of a species may inherit certain physical characteristics which their parents acquired in the course of their daily lives. According to Lamarck, modern giraffes evolved from short-necked ancestors. The long necks develop as a result of stretching to reach the leaves of tall trees. The offspring of these giraffes inherited the long necks.
Lamarck's assumption of acquisition of characteristics by individuals in the course of their lifetimes is true. However, the passing of these traits to their offspring is not true. Acquired characteristics do not cause any alteration whatsoever in the hereditary information contained in the chromosomes. This theory is therefore not valid.
Answer:
Competition in science is when two or more organisms compete for resources such as food, water, or shelter.
Explanation:
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Ocean ridges and trenches are related in a few ways. One of the ways is being created from the movement of tectonic plates on the mantle when they diverge and converge. When tectonic plates diverge they "pull apart" and create trenches. When they converge they "push together" and create ridges, subduction happens here. The tectonic plates move on the mantle of magna from convection currents creating these different boundaries.
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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.