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What resources are needed to make food?

What resources are needed to make food? Natural resources are used to make food, fuel and raw materials for the production of goods. All of the food that people eat comes from plants or animals. Natural resources such as coal, natural gas and oil provide heat, light and power. Which are non-renewable resources? There are […]

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How do you start a scientific question?

How do you start a scientific question? Remember to write a question that is going to be simple, measurable, attainable, relevant, and limited to a particular time and place. Avoid why questions. Next, write a prediction that answers your question. This is your hypothesis. Why is chemistry a good subject? Chemistry is essential for meeting […]

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How do Neuroprosthetic devices work?

How do Neuroprosthetic devices work? Such devices translate electrical neural activity from the brain into control signals for guiding paralyzed upper limbs, prosthetic arms, and computer cursors. Neural activity from various arm movement-related brain regions is electronically processed to create control signals for enacting the desired movement. What is a neural prosthetic? Neural prostheses (NPs) […]

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How does evolution result in new species?

How does evolution result in new species? Evolution is a process that results in changes in the genetic material of a population over time. Evolution reflects the adaptations of organisms to their changing environments and can result in altered genes, novel traits, and new species. An example of macroevolution is the evolution of a new […]

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What happens to the frequency of a recessive allele when selection is against the recessive phenotype?

What happens to the frequency of a recessive allele when selection is against the recessive phenotype? Because of the sheltering effect of heterozygotes, selection against recessive phenotypes changes the frequency of the recessive allele slowly. Therefore, to halve an allele frequency from 1/50 to 1/100 would proceed slowly from 1/50 to 1/51, 1/52, 1/53, and […]

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Which term means surgical fixation of a testicle?

Which term means surgical fixation of a testicle? orchidopexy, orchiopexy. surgical fixation of a testicle – Ex: to bring into the scrotum. Which procedure is most likely to be performed to correct cryptorchidism? orchidopexy What does Orchidopexy mean? Orchidopexy (OR-kid-o-pex-ee) is a surgery to move a testicle that has not descended or moved down to […]

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Is cardiac muscle involuntary?

Is cardiac muscle involuntary? Cardiac muscle cells are located in the walls of the heart, appear striated, and are under involuntary control. Which muscles are called involuntary muscles? Smooth muscle, also called involuntary muscle, muscle that shows no cross stripes under microscopic magnification. It consists of narrow spindle-shaped cells with a single, centrally located nucleus. […]

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