Biology Homework Answers & Questions

• Biologists study the physical structures of species and compare them to its fossil record. New technology allows scientists to examine the DNA of different species, and they have discovered that speci
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• A few times a month, Janice described the moon she saw in the sky. Her observations are recorded in the following table below. Date Appearance of Moon August 10 Full sunlit circle August 18 Left half
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• The incidence of cystic fibrosis, a recessive genetic disorder in the Caucasian population of United States, is 1 in every 2,500 individuals. Find the number of heterozygous carriers. (p + q = 1, p2 +
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• What is the correct description of lactic acid fermentation? A. an anaerobic process that has CO2 as a byproduct B. an anaerobic process that occurs in muscles C. an aerobic process that produces ATP
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• As scientists have developed more productive crop varieties, farmers have switched from growing many traditional varieties to new high-yield varieties. For example, in Peru, the Indians once grew 500
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• A multicellular organism is A.an organism that only has one cell B.an organism that contains more than one cell C.an organism that does not have any cells D.an organism that has only one type of cell
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• A biology student is studying ways to grow crops in soils that are high in salts and other dissolved solids. To determine whether corn plants can tolerate salty soil conditions, she grows one corn pla
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• The pedigree on the right shows the inheritance pattern for an X-linked recessive disorder. If the female circled in pink married an affected male and had a female child, what is the chance that the c
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• How is Earth's surface likely to change along the edges of a bend in a river channel? Erosion takes place along the inner edge as water flows relatively slowly. Erosion takes place along the outer edg
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• A demyelinating disease (such as ms) slows down or prevents action potentials along motor neurons. using this information, would a demyelinating disease cause skeletal muscle to stay constantly contra
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• A student has four snails, four sprigs of Elodea, eight test tubes of brom thymol blue, and two rooms (light and dark). The student wants to know what gases are produced by the snails and Elodea in li
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• Ecological succession leads to the sustainability of life in an ecosystem. Succession is the observed process of change in the species structure of an ecosystem. The community begins with relatively f
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• Answer ASAP as possible/ 20 points! Which of the following do the objects in the four categories of of small objects in the solar system have in common? A) They all orbit the sun B) They can all be f
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• A scientist is trying to predict the regions of the world most likely to see a decrease in natural resources from population changes. Based on the evidence in the graph, what should the scientist conc
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• 1. microtubules and microfilaments that support and shape the cell flagella 2. tiny structures that conduct protein synthesis endoplasmic reticulum (ER) 3. semipermeable layer that surrounds all c
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• The image shows a white sweet pea that is labeled with its two alleles for petal color. What can you surmise from the labeled image? The genotype is heterozygous. White petal color is a recessive trai
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• The peripheral nervous system includes A. the cranial nerves and spinal nerves. B. all nerves and associated cells that are not part of the brain and spinal cord. C. the brain and spinal cord. D. only
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• What enables bacteria to produce human growth hormone? (Please explain why it is the answer you picked because I don't understand this question) a) DNA replication is semi-conservative b) The polymer
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• Information that specifies an organism's traits is encoded in genes, or pieces of DNA that are located in the organism's chromosomes. The passage of these instructions from one generation to the next
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• Pllzzz help i will give 20 points if u answer correct Which pairing shows the passive ways substances move through cell membranes? A. diffusion and osmosis B. active transport and respiration C. photo
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