Answer:
The Pair Distribution Function (PDF) provides the probability of finding an atom at a distance "r" from a given atom.
Explanation:
Atoms are made up three particles protons, neutrons and electrons. The PDF is the Sine - Fourier transform of the total scattering diffraction pattern.
The Atomic structure pdf is used to find the average and short range structure for disordered crystalline materials, nanomaterials and amorphous materials.
Local Distortions, Chemical short range order, nanomaterial structure and amorphous structures are some of the studies that can be done by pdf technique.
<span>About 50%
Both the mother and father contribute about the same amount of genetic material to their offspring, but it's not quite 50/50. Taking humans as an example, both parents contribute the same amount of genetic material for 22 of the 23 chromosome pairs, but the 23rd pair that determines gender (the X and Y chromosomes) are of different size. So for female children, both parents contribute about the same amount, but for male children, the mother contributes a larger portion since the X chromosome is quite a bit larger than the Y chromosome from the father. Another area in which the contribution differs is the mitochondrial DNA which is contributed solely by the mother. For mammals, this is about 1% of the total genetic material.</span>
The correct answer is C. A windstorm blew down trees in the Boundary Waters Canoe Area in Minnesota on July 4, 1999.
Explanation:
A weather event refers to a specific phenomenon in weather that in most cases is not common but particular and specific, which is different to weather patterns, this includes specific hurricanes, abnormal rain patterns, etc. Considering this, the one that is an example of a weather event is "A windstorm blew down trees in the Boundary Waters Canoe Area in Minnesota on July 4, 1999" because this is a specific phenomenon rather than a pattern in weather as int the case of hurricane seasons or permanent weather conditions.
The terms for each description are:
- <u>Edwin Hubble:</u> known as the father of the Big Bang Theory.
- <u>Albert Einstein:</u> responsible for the general theory of relativity.
<h3>How to match the terms with each description?</h3>
In this exercise, you're required to match the appropriate terms with each description as follows:
<u>Cosmological Principle:</u> states that all matter is evenly distributed throughout the universe, in the same amounts, moving in the same directions, and in the same ways.
<u>Gravity:</u> thought to have started the "Big Bang".
<u>Expansion:</u> Hubble's law tells us this is happening to the universe.
<u>Explosion:</u> formed the stars, galaxies, and solar system.
<u>Edwin Hubble:</u> he is known as the father of the Big Bang Theory.
<u>Albert Einstein:</u> he is responsible for the general theory of relativity.
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Just like an egg, plants need to find all the resources to grow and germinate. Some advantages of seeds are that they are more resistant, can be pollinated and allow for greater genetic variability.
<h3>What is the process of seed development?</h3>
The process of seed development involves an orderly sequence of events. Among them are cell divisions, accumulation of reserves and loss of water. Seeds develop, undergo physiological rest, cryptobiosis, quiescence and dormancy.
Seeds are extremely important structures for the survival of plants in the terrestrial environment. They are responsible for protecting the embryo, in addition to ensuring the dispersion of species throughout the environment.
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