Ques:Q: What type of tissue covers the outside of a plant in a single layer of cells called the epidermis? Read this paragraph and choose the correct option from the provided answers: The three types of plant cells are found in each of the major types of plant tissues: dermal, ground, and vascular tissues. Dermal tissue covers the outside of a plant in a single layer of cells called the epidermis. It mediates most of the interactions between a plant and its environment. Ground tissue makes up most of the interior of a plant. It carries out basic metabolic functions and stores food and water. Vascular tissue runs through the ground tissue inside a plant. It consists of bundles of xylem and phloem, which transport fluids throughout the plant. Choices: - dorsal - mucous - anterior - dermal A:

Ans:dermal
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Ques:Q: What part of earth do many animals use for navigation? Read this paragraph and choose the correct option from the provided answers: Another benefit of Earth's magnetic field is its use for navigation. People use compasses to detect Earth's magnetic north pole and tell direction. Many animals have natural "compasses" that work just as well. For example, the loggerhead turtle in the Figure below senses the direction and strength of Earth's magnetic field and uses it to navigate along migration routes. Many migratory bird species can also sense the magnetic field and use it for navigation. Recent research suggests that they may have structures in their eyes that let them see Earth's magnetic field as a visual pattern. You can learn more at this URL: http://www. smithsonianmag. com/science-nature/How-Do-Birds-Find-Their-Way-Home. html. Choices: - oceans - atmosphere - molten core - magnetic field A:

Ans:magnetic field
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Ques:Q: Robert merrifield developed the first synthetic approach for making what essential cell substances in the lab? Read this paragraph and choose the correct option from the provided answers: Cells in our bodies have an intricate mechanism for the manufacture of proteins. Humans have to use other techniques in order to synthesize the same proteins in a lab. The chemistry of peptide synthesis is complicated. Both active groups on an amino acid can react and the amino acid sequence must be a specific one in order for the protein to function. Robert Merrifield developed the first synthetic approach for making proteins in the lab, a manual approach which was lengthy and tedious (and, he won the Nobel Prize in Chemistry in 1984 for his work). Today however, automated systems can crank out a peptide in a very short period of time. Choices: - cells - acids - lipids - proteins A:

Ans:proteins
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Ques:Q: Because collisions are ______, energy can be transferred between molecules during them. Read this paragraph and choose the correct option from the provided answers: Energy can be transferred between molecules during collisions. Collisions are completely elastic. Choices: - conductive - inelastic - preservative - elastic A:

Ans:
elastic
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