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Biology

What two words are given to the structure of DNA?

What two words are given to the structure of DNA? Chromosomal DNA consists of two DNA polymers that make up a 3-dimensional (3D) structure called a double helix. In a double helix structure, the strands of DNA run antiparallel, meaning the 5′ end of one DNA strand is parallel with the 3′ end of the […]

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How quickly does a virus replicate?

How quickly does a virus replicate? Cells infected with non-lytic viruses may continue to synthesize viruses indefinitely. The reproductive cycle of viruses ranges from 8 hrs (picornaviruses) to more than 72 hrs (some herpesviruses). The virus yields per cell range from more than 100,000 poliovirus particles to several thousand poxvirus particles. When can viruses multiply? […]

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What are some behavioral adaptations of a sea turtle?

What are some behavioral adaptations of a sea turtle? The Adaptations of Turtles Movement. Turtles have sleek and paddlelike forelimbs to propel them swiftly in water and claws for crawling on land. Breathing. Turtles have more than one lung located on the top of their shells for breathing. Eyesight. Feeding. Defense. What are some behavioral […]

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What spider is more dangerous than the black widow?

What spider is more dangerous than the black widow? Brown widow venom What spider leaves 2 bite marks? Black widow spider bite symptoms are immediate pain, burning, redness, and swelling. Other signs and symptoms of a black widow spider bite are a feeling of a pinprick, and sometimes double fang marks on the person where […]

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What causes shrubs to die?

What causes shrubs to die? Cankers, anthracnose and fire blight are all diseases that can also cause die back of branches in shrubs. More serious issues like root or crown rot, can lead to the death of an entire shrub. Diseases and pests likely to cause die back vary by shrub species. Why are my […]

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Why transpiration is a necessary evil explain?

Why transpiration is a necessary evil explain? Transpiration occurs through the stomata. Thus transpiration is called as a necessary evil because it is an inevitable process. The loss of water can lead to wilting, serious desiccation, and shortage of water. Transpiration helps in the ascent of the sap and the pulling of the water from […]

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What is intensive system of keeping animals?

What is intensive system of keeping animals? Intensive animal farming or industrial livestock production, also known by its opponents as factory farming is a type of intensive agriculture, specifically an approach to animal husbandry designed to maximize production, while minimizing costs. What is intensive system of animal husbandry? Specialized system of breeding animals where the […]

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What nutrient cycle is driven by bacteria?

What nutrient cycle is driven by bacteria? Ammonification /Mineralization: In ammonification, bacteria or fungi convert the organic nitrogen from dead organisms back into ammonium (NH4+). Nitrification can also work on ammonium. It can either be cycled back into a plant usable form through nitrification or returned to the atmosphere through de-nitrification. What role does bacteria […]

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