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Luke S.
High School Tutor and Science Club Teacher
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Geometry
TutorMe
Question:

Of the possible Angle-Side combinations (AAA, AAS, ASS, ASA, SAS, or SSS), which ones can be used as a valid proof of congruency between two triangles that share the same values of the separate consecutive components.

Luke S.
Answer:

When proving triangles to be congruent, the Angle-Side-Angle (ASA), Side-Angle-Side (SAS), and Side-Side-Side (SSS) theorems can be used to prove congruency between two triangles.

Chemistry
TutorMe
Question:

Water exhibits many traits that make it unique from other similar liquids. Capillary Action, Surface Tension, Cohesion, Adhesion, and High Heat Capacity are all examples of properties of water that are the result of what Intermolecular Force?

Luke S.
Answer:

Hydrogen Bonding is responsible for the properties of water described, and many more. Hydrogen Bonding occurs between the Hydrogen atom of one molecule and the Oxygen, Nitrogen, or Fluorine atom of another molecule. With water, this IMF (Intermolecular Force) means that Water molecules attract one another, and other molecules, resulting in the traits listed.

Biology
TutorMe
Question:

Gasterosteus aculeatus, commonly known as the three-spined stickleback, is a prime example of a physical variation that occurs without genomic change through changes in gene expression. How can two members of the same species display different physical characteristics while having the same DNA?

Luke S.
Answer:

While the genes in the Sticklebacks may be identical, gene switches allow certain genes to be expressed in different ways. The epigenome of the two fishes may have altered over time due to environmental stresses, causing the two genetically identical fish to display the same genes in different ways.

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