Answer the following question given this paragraph: Gamma rays are electromagnetic waves. Electromagnetic waves are waves of electric and magnetic energy that travel through space at the speed of light. The energy travels in tiny "packets" of energy, called photons. Photons of gamma energy are called gamma particles. Other electromagnetic waves include microwaves, light rays, and X rays. Gamma rays have the greatest amount of energy of all electromagnetic waves. You can learn more about gamma radiation at this URL: http://www. youtube. com/watch?v=okyynBaSOtA. Q: Electromagnetic waves are comprised of what two types of energy? Choices: - solar and kinetic - kinetic and electric - magnetic and gravitational - electric and magnetic A:
electric and magnetic
(Question)
Answer the following question given this paragraph: cell depletion, organ system failure, and impaired tissue injury responses. Telomerase reactivation in these mice caused extension of telomeres, reduced DNA damage, reversed neurodegeneration, and improved the function of the testes, spleen, and intestines. Thus, telomere reactivation may have potential for treating age-related diseases in humans. Cancer is characterized by uncontrolled cell division of abnormal cells. The cells accumulate mutations, proliferate uncontrollably, and can migrate to different parts of the body through a process called metastasis. Scientists have observed that cancerous cells have considerably shortened telomeres and that telomerase is active in these cells. Interestingly, only after the telomeres were shortened in the cancer cells did the telomerase become active. If the action of telomerase in these cells can be inhibited by drugs during cancer therapy, then the cancerous cells could potentially be stopped from further division. Q: What is characterized by uncontrolled cell division of abnormal cells? Choices: - radiation - concussions - hepatitis - cancer A:
(Answer)
cancer
Ques: Answer the following question given this paragraph: The most important source of electromagnetic waves on Earth is the sun. Electromagnetic waves travel from the sun to Earth across space and provide virtually all the energy that supports life on our planet. Many other sources of electromagnetic waves depend on technology. Radio waves, microwaves, and X rays are examples. We use these electromagnetic waves for communications, cooking, medicine, and many other purposes. Q: What is the most important source of electromagnetic waves on earth? Choices: - cell phones - wireless networks - radios - the sun A:
Ans: the sun
(Q).
Answer the following question given this paragraph: articular processes allow for the greatest range of rotation within the vertebral column. The lumbar region allows for considerable extension, flexion, and lateral flexion, but the orientation of the articular processes largely prohibits rotation. The articulations formed between the skull, the atlas (C1 vertebra), and the axis (C2 vertebra) differ from the articulations in other vertebral areas and play important roles in movement of the head. The atlanto-occipital joint is formed by the articulations between the superior articular processes of the atlas and the occipital condyles on the base of the skull. This articulation has a pronounced U-shaped curvature, oriented along the anterior-posterior axis. This allows the skull to rock forward and backward, producing flexion and extension of the head. This moves the head up and down, as when shaking your head "yes. " The atlantoaxial joint, between the atlas and axis, consists of three articulations. The paired superior articular processes of the axis articulate with the inferior articular processes of the atlas. These articulating surfaces are relatively flat and oriented horizontally. The third articulation is the pivot joint formed between the dens, which projects upward from the body of the axis, and the inner aspect of the anterior arch of the atlas (Figure 9.14). A strong ligament passes posterior to the dens to hold it in position against the anterior arch. These articulations allow the atlas to rotate on top of the axis, moving the head toward the right or left, as when shaking your head "no. Q: What processes allow for the greatest range of rotation within the vertebral column and facilitate the movement of the head? Choices: - vertical - lateral - anterior - articular A:
(A).
articular
Ques:Answer the following question given this paragraph: Macroevolution occurs when microevolution takes place over a long period of time. Types of macroevolution include speciation, convergent evolution, and coevolution. Q: Speciation, convergent evolution, and coevolution are types of what process? Choices: - devolution - systemic evolution - microevolution - macroevolution A:

Ans:macroevolution
Answer the following question given this paragraph: Photosynthetic protists use light energy to make food. They are major producers in aquatic ecosystems. Q: In order to create food, what do photosynthetic protists use? Choices: - thermal energy - hydrocarbons - decayed matter - light energy A:
light energy