Answer the following question given this paragraph: Q: In fruit flies, all homeotic genes are found on one what? Choices: - genome - enzymes - site - chromosome A:
chromosome
(Question)
Answer the following question given this paragraph: pH values for several common materials are listed. Q: What can be used to speed up biochemical reactions? Choices: - proteins - hormones - carbohydrates - enzymes A:
(Answer)
enzymes
Ques: Answer the following question given this paragraph: 22.1 Introduction Viruses are the smallest biological particle (the tiniest are only 20 nm in diameter). However, they are not biological organisms so they are not classified in any kingdom of living things. They do not have any organelles and cannot respire or perform metabolic functions. Viruses are merely strands of DNA or RNA surrounded by a protective protein coat called a capsid. Viruses only come to life when they have invaded a cell. Outside of a host cell, viruses are completely inert. Since first being identified in 1935, viruses have been classified into more than 160 major groups. Viruses are classified based on their shape, replication properties, and the diseases that they cause. Furthermore, the shape of a virus is determined by the type and arrangement of proteins in its capsid. Viruses pathogenic to humans are currently classified into 21 groups. Viruses can also attack bacteria and infect bacterial cells. Such viruses are called bacteriophages. Q: The shape of a virus is determined by the type and arrangement of proteins in its what? Choices: - enamel - anode - nuclei - capsid A:
Ans: capsid
(Q).
Answer the following question given this paragraph: Like a chemical compound, a mixture consists of more than one chemical substance. Unlike a compound, a mixture does not have a fixed chemical composition. The substances in a mixture can be combined in any proportions. A mixture also does not involve a chemical reaction. Therefore, the substances in a mixture are not changed into unique new substances, and they can be separated from each other without a chemical reaction. Q: What is the term for a combination of substances in which there is no chemical reaction? Choices: - a combination - a solute - a solution - a mixture A:
(A).
a mixture
Ques:Answer the following question given this paragraph: Q: What is only effective if ventilation is matched to blood flow through alveolar capillaries? Choices: - iron lung - blood pressur control - assisted breathing - breathing control A:

Ans:breathing control
Question: Answer the following question given this paragraph: Zones in the oceans include the intertidal, pelagic, and benthic zones. The types of organisms found in these ocean zones are also determined by such factors as depth of water and distance from shore, among other factors. Q: Name the 3 ocean zones. Choices: - coral, intertidal, apogean - amphidromic, cotidal, benthic - cotidal, intertidal, exotidal - intertidal, pelagic, benthic A:
Answer:
intertidal, pelagic, benthic