Answer:
ADHD is the Answer for this question
Answer:
The answer is Gradualism.
Explanation:
In gradualism, gradual change over a long period of time leads to species formation.
Biogeography is the scientific study of the distribution of species and ecosystems throughout geographical space and over periods. It combines information from biology, geology, and climate science to understand where life exists, where it did in the past, and where it might in the future.
Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. It examines patterns of species distribution on Earth and their historical changes. For instance, if we take the example of kangaroos being native to Australia, it's the field of biogeography that explains why such a condition came to be. By merging information from different scientific fields such as geology, biology, and climate science, biogeography can tell us where life exists now, where it existed in the past, and where it might exist in the future. Biogeography is broadly divided into two types: Historical Biogeography (which focuses on long-term, evolutionary timescales) and Ecological Biogeography (which focuses on shorter, ecological timescales). It's a key element in many biological and geographical studies, as understanding the spatial distribution of species can help in conservation planning and can provide insight into the processes of evolution & adaptation.
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The right answer is A. Hardness.
The hardness of a material defines the resistance of a surface of the sample to the penetration of a punch, for example a hardened steel ball (Brinell hardness) or a diamond pyramid (Vickers hardness). If it resists well, it is said hard, otherwise it is soft. The hardness is measured on different scales depending on the type of material considered.
Unlike minerals whose hardness is characterized by scratching (Mohs scale), bounce or penetration tests are usually used to characterize the hardness of metals, plastics and elastomers. These tests have the advantage of being simpler to perform and give reproducible results. There is a wide variety of possible hardness tests, they are widely used in quality control to compare or estimate the strength or stiffness of materials.
In Stabilization Selection there is a decrease in the amount of variation. In the case of Stabilization Selection, selective pressures must select against two extremes of a particular trait. Two opposing selection pressures will combine to maintain a median height. Rather than resulting in extremely tall plants or extremely short plants, the majority of the plants in this population will be of medium height.
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