Q: What would cause warm receptors to signal the hypothalamic thermostat? Read this paragraph and choose the correct option from the provided answers: Choices: - hypothermia - lower temperature - hyperventilation - increased temperature A:
increased temperature

(Question)
Q: What is the name of the hollow nerve cord along the back of chordates? Read this paragraph and choose the correct option from the provided answers: Choices: - zetacord - mesoderm - phloem - notochord A:
(Answer)
notochord

Ques: Q: What is the study of viruses called? Read this paragraph and choose the correct option from the provided answers: The life sciences are so complex that most scientists focus on just one or two subspecialties. If you want to study insects, what would you be called? An entomologist. If you want to study the tiny things that give us the flu, then you need to enter the field of virology , the study of viruses. If you want to study the nervous system, which life science field is right for you ( Table below , Table below , and Table below )?. Choices: - immunology - microbiology - biotechnology - virology A:
Ans: virology

(Q).
Q: What are electrons lost during the formation of ions called? Read this paragraph and choose the correct option from the provided answers: Some elements lose one or more electrons in forming ions. These ions are known as " cations " because they are positively charged and migrate toward the negative electrode ( cathode ) in an electrical field. Looking at the periodic table below, we know that the group 1 elements are all characterized by having one s electron in the outer orbit and group 2 elements have two s electrons in the outer orbit. These electrons are loosely attached to the atom and can easily be removed, leaving more protons in the atom that there are electrons, so the resulting ion has a positive charge. Cations can also be formed from electron loss to many of the transition elements. Choices: - catalysts - oxides - isotopes - cations A:
(A).
cations

Ques:Q: What do organisms use to store energy? Read this paragraph and choose the correct option from the provided answers: A lipid is an organic compound such as fat or oil. Organisms use lipids to store energy, but lipids have other important roles as well. Lipids consist of repeating units called fatty acids. Fatty acids are organic compounds that have the general formula CH 3 (CH 2 ) n COOH, where n usually ranges from 2 to 28 and is always an even number. There are two types of fatty acids: saturated fatty acids and unsaturated fatty acids. Choices: - tissues - proteins - metabolytes - lipids A:

Ans:lipids

Q: The anatomical arrangement of capillaries and alveoli emphasizes the structural and functional relationship of what systems? Read this paragraph and choose the correct option from the provided answers: are attached to the end of each bronchiole. At the end of each duct are approximately 100 alveolar sacs, each containing 20 to 30 alveoli that are 200 to 300 microns in diameter. Gas exchange occurs only in alveoli. Alveoli are made of thin-walled parenchymal cells, typically one-cell thick, that look like tiny bubbles within the sacs. Alveoli are in direct contact with capillaries (one-cell thick) of the circulatory system. Such intimate contact ensures that oxygen will diffuse from alveoli into the blood and be distributed to the cells of the body. In addition, the carbon dioxide that was produced by cells as a waste product will diffuse from the blood into alveoli to be exhaled. The anatomical arrangement of capillaries and alveoli emphasizes the structural and functional relationship of the respiratory and circulatory systems. Because there are so many alveoli (~300 million per lung) within each alveolar sac and so many sacs at the end of each alveolar duct, the lungs have a sponge-like consistency. This organization produces a very large surface area that is available for gas exchange. The surface area of alveoli in the lungs is approximately 75 m2. This large surface area, combined with the thin-walled nature of the alveolar parenchymal cells, allows gases to easily diffuse across the cells. Choices: - nervous and lymphatic - digestive and respiratory - endocrine and renal - respiratory and circulatory A:
respiratory and circulatory