(Q).
Answer the following question given this paragraph: nylon: Human-made fabric. Material is made from hydrocarbons found in petroleum products. It is found in a number of plastic utensils. Taking advantages of its strength and light weight, nylon is a component of ropes, fishing nets, tents, and parachutes. Q: What strong and lightweight manmade material is derived from hydrocarbons and used in ropes, tents and parachutes? Choices: - styrofoam - cellophane - aluminum - nylon A:
(A).
nylon

(Q).
Answer the following question given this paragraph: The cells of the blastocyst form an inner cell mass and an outer cell layer, as shown in Figure below . The inner cell mass is called the embryoblast . These cells will soon develop into an embryo. The outer cell layer is called the trophoblast . These cells will develop into other structures needed to support and nourish the embryo. Q: What is the inner cell mass formed by the cells of the blastocyst called? Choices: - xerophyte - amniotic cavity - ectoderm - embryoblast A:
(A).
embryoblast

(Q).
Answer the following question given this paragraph: Q: Within each sporangium, hundreds of what kind of spores develop and are dispersed through the air? Choices: - diploid - polyploid - infertile - haploid A:
(A).
haploid