In the video we watched in class, CRISPR-modified mosquitos were genetically engineered to reduce populations of wild mosquitos, which spread a variety of disease and viruses like Zika. What is this technique called?

Valles Marineris is a(n)

Which of the following can act like a long-term “thermostat” that helps keep Earth’s average temperature fairly stable?

The late heavy bombardment phase of the solar system happened

Moving genes from one organism to another via genetic engineering requires a [enzyme1] to cut DNA at specific palindromic sequences and [enzyme2] to join fragments of DNA back together.

Which of the following is not an exception to the general patterns found in the solar system?

Energy Level Transitions. The diagram below shows five transitions (labeled with capital letters A through E) representing an electron moving between energy levels in a hydrogen atom. electron jumps.jpg  Which transition could represent an atom that absorbs a photon with 10.2 eV of energy?   

Which of the following statements about electrons is not true?

The lithosphere of a planet is the layer that consists of

You have a sample rock bearing the unstable isotope potassium-40 (40K) which decays into the stable isotope argon-40 (40Ar) over the course of a 1.3-billion year half life. In your sample you analyze the two isotopes and find that you have 8 g of 40K. The 40Ar analysis indicates that the sample originally started with 32 g of 40K. What is the age of this sample in years?