Answer the following question given this paragraph: Pressure is defined as the amount of force acting on a given area. Therefore, pressure can be represented by this equation:. Q: What is defined as the amount of force acting on a given area? Choices: - energy - resistance - power - pressure A:
pressure
(Question)
Answer the following question given this paragraph: Aging is associated with the death of cells. Give two reasons why cells die. Q: Aging is associated with the death of what? Choices: - proteins - genes - muscles - cells A:
(Answer)
cells
Ques: Answer the following question given this paragraph: Potential energy is the energy stored in an object because of its position or shape. It includes gravitational potential energy and elastic potential energy. Gravitational potential energy depends on an object's weight and height above the ground. Q: What type of energy is stored in an object because of its position or shape? Choices: - magnetic - mechanical - kinetic - potential A:
Ans: potential
(Q).
Answer the following question given this paragraph: To see an animation of this DNA molecule, click here (http://openstaxcollege. org/l/rotating_DNA2) . Some cells contain aggregates of macromolecules surrounded by membranes; these are called organelles. Organelles are small structures that exist within cells and perform specialized functions. All living things are made of cells; the cell itself is the smallest fundamental unit of structure and function in living organisms. (This requirement is why viruses are not considered living: they are not made of cells. To make new viruses, they have to invade and hijack a living cell; only then can they obtain the materials they need to reproduce. ) Some organisms consist of a single cell and others are multicellular. Cells are classified as prokaryotic or eukaryotic. Prokaryotes are single-celled organisms that lack organelles surrounded by a membrane and do not have nuclei surrounded by nuclear membranes; in contrast, the cells of eukaryotes do have membrane-bound organelles and nuclei. In most multicellular organisms, cells combine to make tissues, which are groups of similar cells carrying out the same function. Organs are collections of tissues grouped together based on a common function. Organs are present not only in animals but also in plants. An organ system is a higher level of organization that consists of functionally related organs. For example vertebrate animals have many organ systems, such as the circulatory system that transports blood throughout the body and to and from the lungs; it includes organs such as the heart and blood vessels. Organisms are individual living entities. For example, each tree in a forest is an organism. Single-celled prokaryotes and single-celled eukaryotes are also considered organisms and are typically referred to as microorganisms. Q: What umbrella term describes small structures that exist within cells and perform specialized functions? Choices: - macromolecules - atoms - organisms - organelles A:
(A).
organelles
Ques:Answer the following question given this paragraph: Collision theory states that chemical reactions occur when atoms, ions, or molecules collide. In other words, these species need to make contact with one another in order for a reaction to take place. Based on this concept, along with a couple of other key points, collision theory helps to explain why certain factors will influence the rate of a chemical reaction. Q: What states that chemical reactions occur when atoms, ions, or molecules collide? Choices: - disturbance theory - reaction theory - elemental theory - collision theory A:

Ans:collision theory
Question: Answer the following question given this paragraph: Hydrocarbons may form straight chains, branched chains, or rings. Ring-shaped hydrocarbons are called cyclic hydrocarbons. Q: What are ring-shaped hydrocarbons called? Choices: - reverse hydrocarbons - curved hydrocarbons - cylindrical hydrocarbons - cyclic hydrocarbons A:
Answer:
cyclic hydrocarbons