Ques: Q: What is a structure that consists of two or more types of tissues that work together to do the same job? Read this paragraph and choose the correct option from the provided answers: After tissues, organs are the next level of organization of the human body. An organ is a structure that consists of two or more types of tissues that work together to do the same job. Examples of human organs include the brain, heart, lungs, skin, and kidneys. Human organs are organized into organ systems, many of which are shown in Figure below . An organ system is a group of organs that work together to carry out a complex overall function. Each organ of the system does part of the larger job. Choices: - cell - organ system - organism - organ A:
Ans: organ

Ques: Q: How are electrons shared in covalent bonds? Read this paragraph and choose the correct option from the provided answers: In other covalent bonds, electrons are shared equally. These bonds are called nonpolar covalent bonds. Neither atom attracts the shared electrons more strongly. As a result, the atoms remain neutral in charge. The oxygen (O 2 ) molecule in the Figure below has two nonpolar bonds. The two oxygen nuclei have an equal force of attraction for their four shared electrons. Choices: - randomly - orderly - unequally - equally A:
Ans: equally

Ques: Q: What is the white solid that forms on corroded battery terminals? Read this paragraph and choose the correct option from the provided answers: Pb(s) + 2H+(aq) + SO42(aq) PbSO4(s) + H2(g) Lead(II) sulfate is the white solid that forms on corroded battery terminals. Exercise Using the activity series, predict what happens in each situation. If a reaction occurs, write the net ionic equation. Choices: - ammonia sulfate - copper sulfate - straight sulfate - lead sulfate A:
Ans: lead sulfate

Ques: Q: By what processes does the ocean modify landforms? Read this paragraph and choose the correct option from the provided answers: The power of the ocean modifies landforms by erosion and deposition. Landforms modified by both erosion and deposition are seen in this photo. The cliff is being eroded by incoming waves. The beach is being created as sand is being deposited. Choices: - splash and deposition - shape and deposition - sweeping and deposition - erosion and deposition A:
Ans:
erosion and deposition