2. The density of gas particles in a section of Earth's atmosphere decreases. Which of the following is the most likely explanation for this event? (2 points) The air pressure in that section of Earth's atmosphere decreased.
The air pressure in that section of Earth's atmosphere increased.
The total number of gas particles in Earth's atmosphere decreased.
The total number of gas particles in Earth's atmosphere increased.

Actual age your first developed of age well comparison age refers to absolute age true or false

Plz ! a scientist wants to produce a cow that makes a particular human protein in it’s milk the desired protein causes blood to clot and can be used to treat hemophilia (a blood clotting disorder). which of the following would be best for the scientist to use? a. genetic crosses. b. cloning. c. selective breeding. d. genetic engineering.

Select the correct answer. which mutation is harmful to the organism? a. a mutation allowing moths to camouflage better on blackened tree bark b. a mutation making staphylococcus aureus resistant to the antibiotic methicillin c. a mutation inhibiting human immunodeficiency virus from attaching to and entering the cell d. a mutation causing uncontrolled cell division e. a mutation giving plant leaves a bitter taste to discourage herbivores from eating them