Answer the following question given this paragraph: At what population size does growth start to slow in the logistic model of growth? That depends on the population's carrying capacity (see Figure above ). The carrying capacity (K) is the largest population size that can be supported in an area without harming the environment. Population growth hits a ceiling at that size in the logistic growth model. Q: The largest population size that can be supported in an area without harming the environment is referred to as what? Choices: - population shift - containing capacity - population density - carrying capacity A:
carrying capacity
(Question)
Answer the following question given this paragraph: An isotonic solution is a solution in which the amount of dissolved material is equal both inside and outside of the cell. Water still flows in both directions, but an equal amount enters and leaves the cell. Q: In which solution is the amount of dissolved material equal both inside and outside of the cell? Choices: - supersaturated - exothermic - hypotonic - isotonic A:
(Answer)
isotonic
Ques: Answer the following question given this paragraph: Sponges are characterized by a feeding system unique among animals. As sponges don't have mouths, they must feed by some other method. Sponges have tiny pores in their outer walls through which water is drawn. Cells in the sponge walls filter food from the water as the water is pumped through the body and out other larger openings. The flow of water through the sponge is unidirectional, driven by the beating of flagella, which line the surface of chambers connected by a series of canals. Q: The flow of water through the sponge is unidirectional, driven by the beating of what? Choices: - antennae - cilia - fin - flagella A:
Ans: flagella
(Q).
Answer the following question given this paragraph: Exercise and Stretching When exercising, it is important to first warm up the muscles. Stretching pulls on the muscle fibers and it also results in an increased blood flow to the muscles being worked. Without a proper warm-up, it is possible that you may either damage some of the muscle fibers or pull a tendon. A pulled tendon, regardless of location, results in pain, swelling, and diminished function; if it is moderate to severe, the injury could immobilize you for an extended period. Recall the discussion about muscles crossing joints to create movement. Most of the joints you use during exercise are synovial joints, which have synovial fluid in the joint space between two bones. Exercise and stretching may also have a beneficial effect on synovial joints. Synovial fluid is a thin, but viscous film with the consistency of egg whites. When you first get up and start moving, your joints feel stiff for a number of reasons. After proper stretching and warm-up, the synovial fluid may become less viscous, allowing for better joint function. Q: What fluid becomes less viscous, allowing for better joint function after stretching? Choices: - proximal - vertebral - cranial - synovial A:
(A).
synovial
Ques:Answer the following question given this paragraph: The majority of known elements are classified as metals. Metals are elements that are lustrous, or shiny. They are also good conductors of electricity and heat. Examples of metals include iron, gold, and copper. Fewer than 20 elements are classified as nonmetals. Nonmetals lack the properties of metals. Examples of nonmetals include oxygen, hydrogen, and sulfur. Certain other elements have properties of both metals and nonmetals. They are known as metalloids. Examples of metalloids include silicon and boron. Q: What are the three classifications of elements? Choices: - metals, non-metals and alkaloids - metals, metaloids, and alkaloids - alkaloids, metaloids, and non-metals - metals, non-metals and metaloids A:

Ans:metals, non-metals and metaloids
Answer the following question given this paragraph: The extent of Arctic sea ice in summer has been decreasing rapidly. The ice pictured below is the sea ice minimum in 2011 ( Figure below ). The yellow line is the median minimum ice extent for 19792000. Q: What trend is occurring involving the extent of arctic sea ice in summer? Choices: - slow decrease - water decrease - Ice growth - rapid decrease A:
rapid decrease