Answer the following question given this paragraph: Ribosomes are small organelles and are the sites of protein synthesis (or assembly). They are made of ribosomal protein and ribosomal RNA, and are found in both eukaryotic and prokaryotic cells. Unlike other organelles, ribosomes are not surrounded by a membrane. Each ribosome has two parts, a large and a small subunit, as shown in Figure below . The subunits are attached to one another. Ribosomes can be found alone or in groups within the cytoplasm. Some ribosomes are attached to the endoplasmic reticulum (ER) (as shown in Figure below ), and others are attached to the nuclear envelope. Q: What are the sites of protein synthesis or assembly? Choices: - chloroplasts - chromosomes - plasma - ribosomes A:
ribosomes
(Question)
Answer the following question given this paragraph: All of these animal behaviors are important. They help the animals get food for energy, make sure their young survive, or ensure that they, themselves, survive. Behaviors that help animals or their young survive, increase the animals' fitness. Animals with higher fitness have a better chance of passing their genes on to the next generation. If genes control behaviors that increase fitness, the behaviors become more common in the species. This occurs through the process of evolution by natural selection. Q: Fitness and natural selection are parts of what theory that might describe how organisms change over time? Choices: - dessication - gravity - implementation - evolution A:
(Answer)
evolution
Ques: Answer the following question given this paragraph: During metamorphism a rock may change chemically. Ions move and new minerals form. The new minerals are more stable in the new environment. Extreme pressure may lead to physical changes like foliation . Foliation forms as the rocks are squeezed. If pressure is exerted from one direction, the rock forms layers. This is foliation. If pressure is exerted from all directions, the rock usually does not show foliation. Q: Foliation, which forms layers in rocks during metamorphism, is caused by what? Choices: - Pulling - power - push - pressure A:
Ans: pressure
(Q).
Answer the following question given this paragraph: Influenza virus is packaged in a viral envelope, which fuses with the plasma membrane. This way, the virus can exit the host cell without killing it. What advantage does the virus gain by keeping the host cell alive?. Q: Influenza virus is packaged in a viral envelope, which fuses with the what? Choices: - nucleus - cell wall - bacteria - plasma membrane A:
(A).
plasma membrane
Ques:Answer the following question given this paragraph: The size of particles determines how they are carried by flowing water. This is illustrated in Figure below . Q: What characteristic of particles determines how they are carried by flowing water? Choices: - density - color - texture - size A:

Ans:size
Ques: Answer the following question given this paragraph: We all enjoy a cool dip in a swimming pool on a hot day, but we may not realize the work needed to keep that water safe and healthy. The ideal pH for a swimming pool is around 7.2. The pH will change as a result of many factors. Adjustment can be accomplished with different chemicals depending on the tested pH. High pH can be lowered with liquid HCl (unsafe material) or sodium bisulfate. The bisulfate anion is a weak acid and can dissociate partially in solution. To increase pH, use sodium carbonate. The carbonate anion forms an equilibrium with protons that results in some formation of carbon dioxide. Q: Liquid hcl can be used to do what to the ph of a swimming pool? Choices: - increase it - raise it - heighten it - lower it A:
Ans:
lower it