Q: When skunks are in danger what do they give off? Read this paragraph and choose the correct option from the provided answers: Choices: - warning howls - ejected quills - sweet odor - foul smell A:
foul smell

(Question)
Q: What evolutionary process may affect the distribution of a polygenic trait? Read this paragraph and choose the correct option from the provided answers: Natural Selection for a Polygenic Trait. Natural selection may affect the distribution of a polygenic trait. These graphs show three ways this can happen. Choices: - artificial selection - flow selection - characteristic selection - natural selection A:
(Answer)
natural selection

Ques: Q: Ionic bonds are electrostatic attractions between two oppositely charged what? Read this paragraph and choose the correct option from the provided answers: Ionic bonds are electrostatic attractions between two oppositely charged ions. Ions can be formed and then bonded when metal atoms donate their valence electrons to nonmetal atoms. Choices: - molecules - gasses - compounds - ions A:
Ans: ions

(Q).
Q: An electron is accelerated from rest through a potential difference of what? Read this paragraph and choose the correct option from the provided answers: An electron is accelerated from rest through a potential difference of volts. It then enters a region traveling perpendicular to a magnetic field of . Calculate the velocity of the electron. Choices: - joules - watts - amperes - volts A:
(A).
volts

Ques:Q: Inserting copies of normal genes into a patient with defective genes is known as? Read this paragraph and choose the correct option from the provided answers: treat genetic disorders. For example, copies of a normal gene might be inserted into a patient with a defective gene. This is called gene therapy . Ideally, it can cure a genetic disorder. Choices: - pattern therapy - cloning - chromosome treatment - gene therapy A:

Ans:gene therapy

Ques:Q: What in hemoglobin gives red blood cells their red color? Read this paragraph and choose the correct option from the provided answers: Red blood cells are shaped like flattened disks. There are trillions of red blood cells in your blood. Each red blood cell has millions of molecules of hemoglobin. Hemoglobin is a protein that contains iron. The iron in hemoglobin gives red blood cells their red color. It also explains how hemoglobin carries oxygen. The iron in hemoglobin binds with oxygen molecules so they can be carried by red blood cells. Choices: - calcium - lead - barium - iron A:

Ans:
iron