Q: Answer the following question given this paragraph: Radioisotopes are widely used in medical diagnosis. These isotopes need to have short half-lives so that they can be administered in very low doses, thus minimizing damage to cells. Q: What type of isotopes have short half-lives and are given in very low doses? A:

OPTIONS:
- stable isotopes
- gasses
- radionuclides
- radioisotopes

A: radioisotopes

input: OPTIONS:
- fatty microorganisms
- lentiviruses microorganisms
- sponges microorganisms
- chemosynthetic microorganisms Now, answer this question: Answer the following question given this paragraph: These brilliant red "feathers" are actually animals called tube worms. They live in an extreme environment on the deep ocean floor, thousands of meters below the water's surface. Their world is always very cold and completely dark. Without sunlight, photosynthesis is not possible. So what do organisms eat at these depths? Tube worms depend on chemosynthetic microorganisms that live inside them for food. In this and other ways, tube worms have adapted to the extreme conditions of their environment. Q: What do tube worms rely on for food? A:
A:
output: chemosynthetic microorganisms

Answer the following question given this paragraph: The average annual temperature on Earth has been rising for the past 100 years. Q: Has the average annual temperature on earth been rising or falling for the past 100 years? A:

OPTIONS:
- unchanged
- fluctuating
- falling
- rising

Answer: rising

Problem: OPTIONS:
- waves
- ions
- atoms
- electrons
Q: Answer the following question given this paragraph: Q: Each line in a structural formula represents a pair of shared what? A:
Answer: electrons

Problem:OPTIONS:
- fur balls
- accumulated toxins
- calories
- excess body heat

Answer the following question given this paragraph: Dogs pant to lose excess body heat. Q: Panting allows dogs to get rid of what? A:
****
A: excess body heat

Problem:OPTIONS:
- trichina
- xerophyte
- spiral
- brachiocephalic

Answer the following question given this paragraph: The Superior Vena Cava The superior vena cava drains most of the body superior to the diaphragm (Figure 20.36). On both the left and right sides, the subclavian vein forms when the axillary vein passes through the body wall from the axillary region. It fuses with the external and internal jugular veins from the head and neck to form the brachiocephalic vein. Each vertebral vein also flows into the brachiocephalic vein close to this fusion. These veins arise from the base of the brain and the cervical region of the spinal cord, and flow largely through the intervertebral foramina in the cervical vertebrae. They are the counterparts of the vertebral arteries. Each internal thoracic vein, also known as an internal mammary vein, drains the anterior surface of the chest wall and flows into the brachiocephalic vein. The remainder of the blood supply from the thorax drains into the azygos vein. Each intercostal vein drains muscles of the thoracic wall, each esophageal vein delivers blood from the inferior portions of the esophagus, each bronchial vein drains the systemic circulation from the lungs, and several smaller veins drain the mediastinal region. Bronchial veins carry approximately 13 percent of the blood that flows into the bronchial arteries; the remainder intermingles with the pulmonary circulation and returns to the heart via the pulmonary veins. These veins flow into the azygos vein, and with the smaller hemiazygos vein (hemi- = "half") on the left of the vertebral column, drain blood from the thoracic region. The hemiazygos vein does not drain directly into the superior vena cava but enters the brachiocephalic vein via the superior intercostal vein. The azygos vein passes through the diaphragm from the thoracic cavity on the right side of the vertebral column and begins in the lumbar region of the thoracic cavity. It flows into the superior vena cava at approximately the level of T2, making a significant contribution to the flow of blood. It combines with the two large left and right brachiocephalic... Q: Each vertebral vein also flows into which vein? A:
****
A:
brachiocephalic