Which variables make a volcano such as Popocatépetl more “dangerous” than others? 1. frequent eruptions
2. location on a plate boundary
3. location near human settlements
4. super hot magma reaching surface
(A) 1 and 2
(B) 1 and 3
(C) 2 and 4
(D) 3 and 4

Plz ! cattle ranchers and dairy farmers rarely allow all of their animals to reproduce instead they practice selective breeding and only encourage the reproduction of animals with specific features. which of the following cows would a dairy farm most likely choose to reproduce? a. a cow that makes a lot of milk. b. a cow that can run quickly. c. a cow with a think, soft fur. d. a cow with large, strong hooves.

Membrane vesicles containing an internal sodium chloride (nacl) concentration of 0.14 m are placed into separate beakers each containing a different solution. the first beaker contains 0.14 m sucrose, while the second beaker contains 0.14 m calcium chloride (cacl2). the temperature is 25°c. what is the solute potential inside the vesicles, expressed in units of mpa?

Which of the following explains why a tree is often used as a model to represent the principle of common descent