Answer the following question given this paragraph: The boy in Figure below is working out on a hot day. He's losing a lot of water in sweat. To maintain homeostasis, his body can balance the water lost in sweat by excreting less water in urine. The amount of water lost in urine is controlled by the kidneys. The kidneys are organs of excretion. Q: Which organ in the body controls the amount of water loss in urine in response to maintaining homeostasis? Choices: - lungs - liver - spleen - kidneys A:
kidneys
(Question)
Answer the following question given this paragraph: Most plants continue to grow throughout their lives. Like other multicellular organisms, plants grow through a combination of cell growth and cell division. Cell growth increases cell size. Cell division increases the number of cells. Q: How do plants grow? Choices: - through cell growth and sexual reproduction - through mitosis and cell division - through pollination and cell division - through cell growth and cell division A:
(Answer)
through cell growth and cell division
Ques: Answer the following question given this paragraph: In deductive reasoning, I make a specific prediction based on a general principle. One general principle is that acids turn blue litmus paper red. If I have a bottle of liquid labeled "acid," I expect the litmus paper to turn red when I immerse it in the liquid. Q: Making a specific prediction based on a general principle is known as what type of reasoning? Choices: - common sense reasoning - logical reasoning - validating reasoning - deductive reasoning A:
Ans: deductive reasoning
(Q).
Answer the following question given this paragraph: symbiotic relationship in which one species benefits while the other species is harmed. Q: What is the term for the relationship in which one species benefits while the other species is harmed? Choices: - combative relationship - commensal relationship - parasitic relationship - symbiotic relationship A:
(A).
symbiotic relationship
Ques:Answer the following question given this paragraph: Receiving Electromagnetic Waves Electromagnetic waves carry energy away from their source, similar to a sound wave carrying energy away from a standing wave on a guitar string. An antenna for receiving EM signals works in reverse. And like antennas that produce EM waves, receiver antennas are specially designed to resonate at particular frequencies. An incoming electromagnetic wave accelerates electrons in the antenna, setting up a standing wave. If the radio or TV is switched on, electrical components pick up and amplify the signal formed by the accelerating electrons. The signal is then converted to audio and/or video format. Sometimes big receiver dishes are used to focus the signal onto an antenna. In fact, charges radiate whenever they are accelerated. When designing circuits, we often assume that energy does not quickly escape AC circuits, and mostly this is true. A broadcast antenna is specially designed to enhance the rate of electromagnetic radiation, and shielding is necessary to keep the radiation close to zero. Some familiar phenomena are based on the production of electromagnetic waves by varying currents. Your microwave oven, for example, sends electromagnetic waves, called microwaves, from a concealed antenna that has an oscillating current imposed on it. Q: What happens to charges whenever they are accelerated? Choices: - they fuse - they darken - they die - they radiate A:

Ans:they radiate
Question: Answer the following question given this paragraph: Rutherford's discoveries meant that Thomson's plum pudding model was incorrect. Positive charge is not spread evenly throughout an atom. Instead, it is all concentrated in the tiny nucleus. The rest of the atom is empty space except for the electrons scattered through it. In Rutherford's model of the atom, which is shown in the Figure below , the electrons move around the massive nucleus like planets orbiting the sun. That's why his model is called the planetary model. Rutherford didn't know exactly where or how electrons orbit the nucleus. That research would be undertaken by later scientists, beginning with Niels Bohr in 1913. New and improved atomic models would also be developed. Nonetheless, Rutherford's model is still often used to represent the atom. You can see an animated version of the model at this URL: http://www. clickandlearn. org/gr9_sci/atoms/modelsoftheatom. html . Q: Positive charge is mostly found in what part of an atom? Choices: - electron shell - neutrons - ions - nucleus A:
Answer:
nucleus