Biology

Student 1 said,Magnetic force and electric charges are similar, becauseopposites attract and likes repel.Student 2 said,Magnetism and electricity are similar because they both havea force field extending out from them so they dont have totouch to work.How would you respond to these students?
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Meiosis guarantees that in a sexual life cycle, offspring will inherit one complete set of chromosomes (and their associated genes and traits) from each parent. The transmission of traits from parents to offspring is called heredity. Another important aspect of meiosis and the sexual life cycle is the role these processes play in contributing to genetic variation. Although offspring always resemble their parents, they are genetically different from both of their parents and from one another. The degree of variation may be tremendous. The following processes are associated with meiosis and the sexual life cycle: DNA replication before meiosis crossing over chromosome alignment in metaphase I and separation in anaphase I chromosome alignment in metaphase II and separation in anaphase II fertilization Sort each process into the appropriate bin according to whether it contributes to heredity only, genetic variation only, or both. (Note that a bin may be left empty.)
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The blue shiner is an endangered fish in Georgia. It lives in the Coosawattee River. A dam is built on the river to create a reservoir. The water below the dam decreases. What would MOST LIKELY happen to the blue shiner numbers after the dam is built on the river?A)They would decrease because of new predator fish.B)They would increase because they will have more space to lay eggs.C)They would decrease because the dam would change the environment.D)They would increase because there would be more nutrients in the water.
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Three alleles control the ABO blood types. IA and IB are codominant genes, so the combination of IAIB produces the AB blood type. The third allele Iois recessive to the other two alleles. Indicate which of these parents could produce the given child.O A X AB produce B child.O A X O produce A child.O A X B produce O child.O A X AB produce O child.O A X AB produce B child.O B X B produce O child.O AB X AB produce A child.
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What part of the brain connects the brain and the eyes?OA. Brain stemOB. MidbrainOc. ThalamusOD. Hypothalamus
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The term secretion refers to Group of answer choices A.the process by which a cell releases a substance into the extracellular space. B.synthesis of a protein for export from the cell. C. the manufacture and assembly of a material. storage of a material, until it is time for it to leave the cell. D.None of these describe secretion.
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Mitosis and meiosis always differ in regard to the presence of a. chromatids. b. homologs. c. bivalents. d. centromeres. e. spindles.
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Who did Charles Darwin study with
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The lack of upwelling during an El Nino period results in which of the following
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Drag each item to the correct location in order to place the events in the development of plants into the correct order
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A scientist at the University of Iowa uses a microscope to observe cells in the brain known as microglia. He makes observations about their structure, location, and activity. The scientist ntually observes the cells undergo a sudden and radical shift in their structure/shape and their motility (ability to move). He asks himself questions about what is causing this shift in behaviors and begins to design an experiment to determine the answer. Briefly describe how the scientist practiced both the exploration and testing aspects of scientific inquiry.
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Theories are used for: A.Testing hypotheses B.Investigating phenomenon C.Validating existing knowledge D.All of the above
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Gas diffusion is dependent upon the partial pressure of gasses. Explain the movement of the following gasses between lung alveoli and blood capillaries as a function of their relative partial pressures in each location. 1. Oxygen 2. Carbon Dioxide
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When Mendel crossed a plant homozygous for round seeds to another plant homozygous for wrinkled seeds, he found that all the progeny had round seeds. How is this explained? A) The parent that was homozygous for round seeds underwent selfpollination. B) The allele for round seeds is recessive to the allele for wrinkled seeds. C) The progeny were homozygous for the allele for round seeds. D) Segregation of alleles in the two parents produced gametes with both alleles. E) The allele for round seeds is dominant to the allele for wrinkled seeds.
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There are two different alleles for flower color, P and p. The image shows a white sweet pea that is labeled with its two alleles for petal color.A white sweet pea is labeled p p.What can you surmise from the labeled image?A.The genotype is heterozygous.B.White petal color is a recessive trait.C.White petal color is a dominant trait.D.The phenotype is heterozygous.
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Name the possible ways that diseases are spread. Describe how this happens in communities.Subject: Anatomy and Physiology
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True/False: Western blotting allows the visualization of proteins with the use of antibodies that specifically bind to the proteins of interest?
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can germs live in cold weather
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prompt: sexual reproduction requires that half of the chromosomes in a zygote come from one parent and the other half from the second parent question: describe the process by which a germ cells complement of chromosomes is halved in the formation of gametes
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biology help needed! Thanks!!
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Daren has sickle-cell disease. Because of the disease, some of Daren's blood cells are long and thin instead of being disk-shaped. Daren's father also suffers from sickle-cell disease, but his mother and two sisters do not. This is an example how A. a person can choose which genes he or she will inherit. B. cells can be influenced by genetic factors. C. cells always repair damaged genes immediately. D. a person cannot survive if even one cell becomes damaged.
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HELP!!!Check out the map showing tornado alley in the U.S. During the winter of 2017, massive tornadoes occurred in the states of Alabama and Georgia, two states that ARE NOT in tornado alley. If the conditions for a tornado are predictable, how could these tornadoes have formed in these two states?A)Warm, moist Pacific coast air meets cold, Atlantic coast air.B)Arctic, Canadian air meets west moving air from the cold Atlantic coast.C)Warm, moist Gulf coast air meets cold, dry continental air moving down from Canada.D)A northeastern air mass drops down into the southern states bringing precipitation.
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The difference between the images in the two eyes, or the ______, is the binocular cue the brain uses to see in three dimensions.
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If toxic fumes are generated while performing an experiment, await instructions from your lab instructor; follow them completely and as quickly as possible. true false
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