Answer the following question given this paragraph: Capillaries are the smallest type of blood vessels. They connect the smallest arteries (arterioles) and veins (venules). Exchange of substances between cells and the blood takes place across the walls of capillaries, which may be only one cell thick. Q: What is the term for the smallest blood vessels? Choices: - muscles - Aortas - arteries - capillaries A:
capillaries
(Question)
Answer the following question given this paragraph: Some parasites kill their host, but most do not. It's easy to see why. If a parasite kills its host, the parasite is also likely to die. Instead, parasites usually cause relatively minor damage to their host. Q: What is likely to happen to a parasite if it kills its host? Choices: - it thrives - it adapts - it mutates - it dies A:
(Answer)
it dies
Ques: Answer the following question given this paragraph: Q: What length of time is human gestation commonly divided into? Choices: - two halves - fifty weeks - four quarters - three trimesters A:
Ans: three trimesters
(Q).
Answer the following question given this paragraph: Edema may be accompanied by varicose veins, especially in the superficial veins of the legs (Figure 20.8). This disorder arises when defective valves allow blood to accumulate within the veins, causing them to distend, twist, and become visible on the surface of the integument. Varicose veins may occur in both sexes, but are more common in women and are often related to pregnancy. More than simple cosmetic blemishes, varicose veins are often painful and sometimes itchy or throbbing. Without treatment, they tend to grow worse over time. The use of support hose, as well as elevating the feet and legs whenever possible, may be helpful in alleviating this condition. Laser surgery and interventional radiologic procedures can reduce the size and severity of varicose veins. Severe cases may require conventional surgery to remove the damaged vessels. As there are typically redundant circulation patterns, that is,. Q: Wich disorder arises when defective valves allow blood to accumulate within the veins? Choices: - vascular disease - bulging veins - cataracts veins - varicose veins A:
(A).
varicose veins
Ques:Answer the following question given this paragraph: Q: In atherosclerosis, thickening of an arterial wall due to this can restrict blood flow through the artery? Choices: - low blood pressure - high blood pressure - digestion - plaque formation A:

Ans:plaque formation
Ques:Answer the following question given this paragraph: Usually evolutionary changes occur at a very slow pace. Human evolution took millions of years. However, sometimes evolution can also happen quite quickly. Q: Human evolution shows that evolutionary changes typically occur at what pace? Choices: - uneven - sudden - rapid - slow A:

Ans:
slow