Answer the following question given this paragraph: The ovaries release the eggs and secrete estrogen. Q: Which organ secretes estrogen? Choices: - the testes - the thyroid - the kidney - the ovaries A:
the ovaries
(Question)
Answer the following question given this paragraph: We will find in Atomic Physics that the orbits of electrons are more properly viewed as electron clouds with the density of the cloud related to the probability of finding an electron in that location (as opposed to the definite locations and paths of planets in their orbits around the Sun). This cloud is shifted by the Coulomb force so that the atom on average has a separation of charge. Although the atom remains neutral, it can now be the source of a Coulomb force, since a charge brought near the atom will be closer to one type of charge than the other. Some molecules, such as those of water, have an inherent separation of charge and are thus called polar molecules. Figure 19.19 illustrates the separation of charge in a water molecule, which has two hydrogen atoms and one oxygen atom H 2 O . The water molecule is not symmetricthe hydrogen atoms are repelled to one side, giving the molecule a boomerang shape. The electrons in a water molecule are more concentrated around the more highly charged oxygen nucleus than around the hydrogen nuclei. This makes the oxygen end of the molecule slightly negative and leaves the hydrogen ends slightly positive. The inherent separation of charge in polar molecules makes it easier to align them with external fields and charges. Polar molecules therefore exhibit greater polarization effects and have greater dielectric constants. Those who study chemistry will find that the polar nature of water has many effects. For example, water molecules gather ions much more effectively because they have an electric field and a separation of charge to attract charges of both signs. Also, as brought out in the previous chapter, polar water provides a shield or screening of the electric fields in the highly charged molecules of interest in biological systems. Q: The electrons in a water molecule are more concentrated around the more highly charged oxygen nucleus than around this? Choices: - helium nuclei - carbon nuclei - peroxide nuclei - hydrogen nuclei A:
(Answer)
hydrogen nuclei
Ques: Answer the following question given this paragraph: Q: What globular protein is used in the construction of the hollow tube? Choices: - actin - cyclin - keratin - tubulin A:
Ans: tubulin
(Q).
Answer the following question given this paragraph: Saturated fatty acids have only single bonds between carbon atoms. As a result, the carbon atoms are bonded to as many hydrogen atoms as possible. In other words, the carbon atoms are saturated with hydrogens. Saturated fatty acids are found in fats. Q: Carbon atoms are bonded to as many hydrogen atoms as possible in what type of fatty acids? Choices: - super - unsaturated - oily - saturated A:
(A).
saturated
Ques:Answer the following question given this paragraph: Consumers are organisms that depend on other living things for food. They take in organic compounds by eating or absorbing other living things. Consumers include all animals and fungi. They also include some bacteria and protists. Q: What are organisms that depend on other living things for food? Choices: - customers - buyers - products - consumers A:

Ans:consumers
Ques:Answer the following question given this paragraph: Use a machine. The polymerase chain reaction has revolutionized biological and biomedical research and applications. Luckily many machines have been developed that allow this process to be performed rapidly and with precision. Q: What has has revolutionized biological and biomedical research and applications? Choices: - synthesis chain reaction - organism chain reaction - Compound chain reaction - polymerase chain reaction A:

Ans:
polymerase chain reaction