Answer the following question given this paragraph: Copper is a good conductor of electricity. That's why electric wires are often made of copper. They are covered with a protective coating of plastic, which does not conduct electricity. Q: What type of metal is a good conductor of electricity? Choices: - Tin - Aluminium - zinc - copper A:
copper
(Question)
Answer the following question given this paragraph: Dermal tissue covers the outside of a plant in a single layer of cells called the epidermis. You can think of the epidermis as the plant's skin. It mediates most of the interactions between a plant and its environment. Epidermal cells secrete a waxy substance called cuticle , which coats, waterproofs, and protects the above-ground parts of plants. Cuticle helps prevent water loss, abrasions, infections, and damage from toxins. Q: What is the waxy substance that epidermal cells secrete? Choices: - cellulose - bile - saliva - cuticle A:
(Answer)
cuticle
Ques: Answer the following question given this paragraph: Oxygen is needed to make ozone. Ozone is a molecule made of three oxygen ions. Ozone in the upper atmosphere blocks harmful solar radiation from reaching the surface. Without oxygen, life on Earth would have been very simple. Q: How many oxygen ions make up an ozone molecule? Choices: - eight - one - five - three A:
Ans: three
(Q).
Answer the following question given this paragraph: Figure 3.31 A nucleotide is made up of three components: a nitrogenous base, a pentose sugar, and one or more phosphate groups. Carbon residues in the pentose are numbered 1 through 5 (the prime distinguishes these residues from those in the base, which are numbered without using a prime notation). The base is attached to the 1 position of the ribose, and the phosphate is attached to the 5 position. When a polynucleotide is formed, the 5 phosphate of the incoming nucleotide attaches to the 3 hydroxyl group at the end of the growing chain. Two types of pentose are found in nucleotides, deoxyribose (found in DNA) and ribose (found in RNA). Deoxyribose is similar in structure to ribose, but it has an H instead of an OH at the 2 position. Bases can be divided into two categories: purines and pyrimidines. Purines have a double ring structure, and pyrimidines have a single ring. Q: What kind of structure do purines have? Choices: - triple ring structure - single ring structure - helical stucture - double ring structure A:
(A).
double ring structure
Ques:Answer the following question given this paragraph: Of the three basic types of emissions, gamma radiation has the highest penetrating power. Thick, high density materials (such as lead) are required to stop gamma emissions. The thickness of the shielding will determine the effectiveness of the protection offered by the lead. Q: Of the three basic types of emissions, which has the highest penetrating power? Choices: - ultraviolet radiation - fluid radiation - chemical radiation - gamma radiation A:

Ans:gamma radiation
Ques: Answer the following question given this paragraph: Lymph capillaries collect fluid that leaks out from blood capillaries. The lymphatic vessels return the fluid to the cardiovascular system. Q: Lymph capillaries collect fluid that leaks out of what? Choices: - bladder - alveoli - lymph nodes - blood capillaries A:
Ans:
blood capillaries