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The white-tailed deer, Odocoileus virginianus, is common in the Eastern United States. Most deer have reddish brown fur, but occasionally a deer may be born with a genetic condition known as albinism which results in white fur. Albinism is caused by the inheritance of two recessive alleles for the production of coloration pigments. If an albino deer is born to two parents who each have normal fur coloration, what conclusion may be drawn about the genotypes of the parent deer?

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What substance combines with oxygen in cellular respiration? A) fat B) sugar C) water D) carbon dioxide

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Which process requires no energy from the cell

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Which of the following statements about human impact on trees is true? a. Human activity always has a negative impact on trees. b. All human uses of trees require destruction of the trees. c. Human activity has had both a positive and negative impact on trees. d. Cutting down trees is the only activity that has a negative impact on trees.

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Haploid numbers of chromosomes are usually found where

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The allele for a widow’s peak has complete dominance over the allele for a straight hairline (w). What is the probability of a man with a straight hairline (ww) and a woman with a widow’s peak (WW) having an offspring without a widow’s peak? 0 percent 75 percent 25 percent 50 percent

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What is the amount of heat required to raise the temperature of water referred to as? A)heat of vaporization B)specific heat C)heat of combustion

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What describes a result of the greenhouse effect?

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A scientist conducted one trial of an experiment and got unexpected results. How can the scientist increase confidence in the results? by repeating the experiment several times by changing the experimental procedure by asking other scientists what they think about the results by modifying the results so they are close to the expected results

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A scientist monitors the contents of five duck nests in parks, five duck nests in zoos, and five duck nests in the wild during the spring and summer for three years. He makes a multiple line graph to plot and compare data for the three locations. Which question describes what the scientist is most likely testing? How many eggs do ducks usually lay? What color of ducks lays the most eggs? What setting is best for producing the most eggs? Where is the safest place to raise ducks?

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What would most likely happen if an error occurred when RNA was receiving coding information?

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In multiple fission, a cell is produced that has multiple ________. A. daughter cells B. spores C. parent cells D. nuclei

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Directional selection can be distinguished from disruptive selection by _______. a. the elimination of extreme variations of traits b. selection for two extreme variations of a trait c. the preservation of gene frequencies d. selection for one extreme variation of a trait

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Which of the following statements about biodiversity is not true? a. Changes to biodiversity never occur naturally. b. Changes to biodiversity can lead to a decrease in ecosystem stability. c. Changes to biodiversity can positively and negatively affect on an ecosystem. d. Changes to biodiversity can lead to an increase in ecosystem stability.

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Sea otters are important predators of sea urchins, an animal that eats giant brown kelp in continental shelf zones where they form huge kelp beds. It was observed that the removal of sea otters from the west coast led to an increase in the sea urchin population. These sea urchins fed on the large kelp fronds, destroying the kelp beds that serve as an important source of food and protection for spawning fish. What role does the sea otter play in this case? Dominant species Invasive species Keystone species

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Imagine that you are at a crime scene. You find skeletal remains, but the skeleton is not complete as some of the smaller bones are missing. The bones are within a twenty feet radius. Based on this information, what would you be able to ascertain about the time of death and the individual who was killed?

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Which of the following best defines gene flow? the sum of all genetic traits in a population’s individuals at a given time any movement of genes from one population to another any movement of organisms from one environment to another the random change in the frequency of an allele in a population

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Which statement correctly matches a cell part with its function? a. The cell membrane produces energy b. The mitochondria perform photosynthesis c. The lysosome digests molecules. d. The nucleus performs cellular respiration

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Which of the following contain the genetic code? 1)carbohydrates 2)lipids 3)nucleic acids 4)proteins

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Macromolecules contain varying amounts of energy, as shown in the table below. Animals that hibernate in the winter require more fats in their diets. Fat will break down over a longer period of time than carbohydrates and allow the animal to survive the winter. Describe some other kinds of activities that would benefit the most from each molecule in the table.

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Which describes both cyclones and anticyclones?

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If a eukaryotic cell is in the G1 phase of the cell cycle, which statement about the cell’s chromosomes…? If a eukaryotic cell is in the G1 phase of the cell cycle, which statement about the cell’s chromosomes must be correct? Each chromosome is made of a complex of DNA and associated proteins. Each chromosome consists of two identical chromatids. The chromosomes are preparing for DNA synthesis.

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Which process requires water to gain heat energy from the environment?

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What describes a result of the greenhouse effect?

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A scientist conducted one trial of an experiment and got unexpected results. How can the scientist increase confidence in the results? by repeating the experiment several times by changing the experimental procedure by asking other scientists what they think about the results by modifying the results so they are close to the expected results

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Unlike sexual reproduction, asexual reproduction maintains which characteristic of the original cell? A. size B. shape C. number of nuclei D. number of chromosomes

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If two diploid cells (2n) joined together in sexual reproduction, their fusion would produce a tetraploid zygote (4n). How do cells that fuse together in sexual reproduction ensure the production of a diploid zygote instead of a tetraploid zygote? A. The chromosomes fuse, which produces cells with half the number of chromosomes. B. They first undergo meiosis, so these cells have only half the number of chromosomes. C. The zygote splits in half, which produces two cells, each with half the number of chromosomes. D. After fertilization, the cell undergoes meiosis, which reduces the number of chromosomes by half.

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How are osmosis and diffusion alike? Both move molecules from areas of high concentration to areas of low concentration. Both processes occur through permeable bilayer membranes. Both require additional energy provided by channel proteins. Both allow solute molecules to move across a semipermeable membrane.

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Information gathered from observing a plant grow 3 cm over a two-week period is called

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How are the probabilities of two parents creating offspring expressing certain traits calculated ?

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