Tutor profile: Sarah S.
What are the differences between the SAT and the ACT?
One of the most obvious differences between the two tests is that only the ACT has a science section. These questions are actually more like reading questions than science questions! Another difference is the types of math questions on the tests. The ACT asks a lot more geometry questions than the SAT. The ACT also has a bit more of a time crunch. On the reading section, you get a little less time per question. To decide which test to take, you can discuss the options with a tutor. It's also a good idea to take a practice test for each and see if you do better on one over the other. Then, you can spend your time preparing for the test that you are stronger with.
What is Hardy-Weinberg equilibrium?
When a population is at Hardy-Weinberg equilibrium, this means that the population is stable and not undergoing evolution. In order for a population to remain at Hardy-Weinberg equilibrium, 5 conditions must be met. These are: 1) no mutations can occur 2) no genetic drift can occur, so the population must be large 3) no migration can occur into or out of the population 4) the individuals must randomly mate, and 5) there can be no natural selection. Hardy-Weinberg is a model that we can compare real-life populations to. In real life, no populations perfectly fit these criteria!
Why are college entrance exams important?
The SAT and ACT are only one factor that colleges take into account when making admissions and scholarship decisions. However, it is one of the lowest-hanging fruits for improving your chances at getting accepted to more schools! These tests require a specific set of skills and knowledge, and any student can improve their score with the proper preparation.
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