Answer the following question given this paragraph: Food is chewed evenly during mastication Moisten and lubricate the lining of the mouth and pharynx. Q: Food chewed evenly during mastication moisten and lubricate the lining of the mouth and this? Choices: - esophagus - trachea - larynx - pharynx A:
pharynx
(Question)
Answer the following question given this paragraph: Collisions of gas particles are elastic, so no energy is lost. Q: When gas particles collide, what kinds of collisions are these considered? Choices: - inelastic - perfect - conservative - elastic A:
(Answer)
elastic
Ques: Answer the following question given this paragraph: The earliest vertebrates were jawless fish. They evolved about 550 million years ago. They were probably similar to modern hagfish (see Table above ). The tree diagram in Figure below summarizes how vertebrates evolved from that time forward. Q: The earliest vertebrates were jawless what? Choices: - mammals - dinosaurs - reptiles - fish A:
Ans: fish
(Q).
Answer the following question given this paragraph: Predator species such as birds and spiders control insect pests. They reduce the need for chemical pesticides, which are expensive and may be harmful to human beings and other organisms. Q: Predators can replace what tool in agriculture. Choices: - harvesters - fertilizer - irrigators - pesticides A:
(A).
pesticides
Ques:Answer the following question given this paragraph: 40.2 Components of the Blood Specific components of the blood include red blood cells, white blood cells, platelets, and the plasma, which contains coagulation factors and serum. Blood is important for regulation of the body's pH, temperature, osmotic pressure, the circulation of nutrients and removal of waste, the distribution of hormones from endocrine glands, and the elimination of excess heat; it also contains components for blood clotting. Red blood cells are specialized cells that contain hemoglobin and circulate through the body delivering oxygen to cells. White blood cells are involved in the immune response to identify and target invading bacteria, viruses, and other foreign organisms; they also recycle waste components, such as old red blood cells. Platelets and blood clotting factors cause the change of the soluble protein fibrinogen to the insoluble protein fibrin at a wound site forming a plug. Plasma consists of 90 percent water along with various substances, such as coagulation factors and antibodies. The serum is the plasma component of the blood without the coagulation factors. Q: Red blood cells, white blood cells, platelets, and plasma are all components of what fluid? Choices: - heart - brain - Vessals - blood A:

Ans:blood
Answer the following question given this paragraph: The double helical nature of DNA, together with the findings of Chargaff, demonstrated the base-pairing nature of the bases. Adenine always pairs with thymine, and guanine always pairs with cytosine ( Figure below ). Because of this complementary nature of DNA, the bases on one strand determine the bases on the other strand. These complementary base pairs explain why the amounts of guanine and cytosine are present in equal amounts, as are the amounts of adenine and thymine. Adenine and guanine are known as purines . These bases consist of two ring structures. Purines make up one of the two groups of nitrogenous bases. Thymine and cytosine are pyrimidines , which have just one ring structure. By having a purine always combine with a pyrimidine in the DNA double helix, the distance between the two sugar-phosphate backbones is constant, maintaining the uniform shape of the DNA molecule. Q: What distinctive configuration of dna demonstrates the base-pairing nature of the bases? Choices: - single helix - double loop - triple helix - double helix A:
double helix