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The student and tutor explored the concepts of microevolution and macroevolution, with a detailed focus on the mechanisms and types of speciation (allopatric, sympatric, peripatric, and parapatric). They also briefly discussed mass extinctions and the geological time scale, with the tutor providing downloadable resources for further study on natural selection and evolution.

The Student and Tutor reviewed the core concepts of evolution, focusing on natural selection, evidence from fossil records, and the formation of different fossil types. They also explored biogeography, anatomical evidence for evolution (homologous and analogous structures), and the principles of divergent and convergent evolution, concluding with an overview of phylogenetic trees.

The Tutor and Student reviewed thermodynamic potentials and the Van der Waals equation, contrasting it with the ideal gas law and explaining correction terms for intermolecular forces and molecular volume. They explored phase diagrams, critical points, and the law of corresponding states, and briefly introduced Helmholtz free energy and partition functions for relating microscopic and macroscopic states.

The Tutor and Student reviewed and practiced problems related to the Ideal Gas Law, Avogadro's Law, and Graham's Law of Effusion. They focused on applying these laws to calculate various gas properties such as temperature, pressure, moles, rates of effusion, and molar masses, with a plan to continue with more rate questions.

The Student and Tutor reviewed the three modes of natural selection (directional, stabilizing, and disruptive) and their effects on populations. They then delved into the Calvin cycle, discussing its role in photosynthesis as the dark reaction for carbon fixation and sugar production. The session included an explanation of the Kelvin cycle's reactants, products, and its dependence on ATP and NADPH.

The tutor and student reviewed gas laws, including Boyle's, Charles's, Gay-Lussac's, and the combined gas law, through practice problems. They also covered calculating molar mass and applying Dalton's Law of Partial Pressures, with plans to continue practice on gas laws and rate problems.