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Questions in biology

[Free] Cutting down certain trees while leaving other trees standing could be described as what?

[Free] In a food chain, which are the most efficient users of solar energy: Herbivores, Carnivores, Omnivores, or Parasites?

[Free] Which of these would most likely cause a mutation? A. The placement of ribosomes on the endoplasmic reticulum B. The insertion of a nucleotide into DNA C. The movement of transfer RNA out of the nucleus D. The release of messenger RNA from DNA

[Free] Provide 5 examples each of mutualism, commensalism, and parasitism.

[Free] Which of the following normally results from meiosis in a human cell that contains 46 chromosomes? A. An egg cell with 46 chromosomes B. A liver cell with 23 chromosomes C. A blood cell with 46 chromosomes D. A sperm cell with 23 chromosomes

[Free] Which definition correctly describes a haploid cell during meiosis? A. a cell that has double the number of chromosomes as the parent cell B. a cell that has two complete sets of chromosomes C. a cell that has half the number of chromosomes as the daughter cell D. a cell that has one complete set of chromosomes

[Free] The flu can be treated or prevented by all of the following except: A. antibiotics B. antiviral drugs C. avoiding contact with people who already have the flu D. a vaccine

[Free] Why is it so important for medical doctors to be able to use a microscope?

[Free] An amoeba divides into two identical daughter cells. They have exactly the same characteristics as the parent amoeba. Which best describes the amoeba’s division?

[Free] What is the definition of activation energy?