Physiology
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each of the black spaces below before clicking
on it to display the answer.
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| What type of pathogen can antibiotics treat? | bacteria
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| From where does active immunity come? | yourself
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| What carries out humoral immunity? | antibodies
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| What is the injection of a weakened pathogen called? | vaccination
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| Waht is the body's first and most important line of defense against diesase? | skin
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| What is the name of diesease-causing organisms? | pathogen
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| Killer T cells attack pathogens in what kind of immunity? | cell-mediated response
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| what type of immune cell does HIV destroy? | Helper T cells
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| An opening in the skin is a potential entrance for what? | infection
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| What happens during anallergic reaction? | Mast cells produce histamines
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| What triggers and immunce response | antigens
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| Why do people with AIDS die from sicknesses such as colds and flu? | No Immune System
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| What are the wtwo divisions of nervous system? | central and peripheral
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| Which neruron type travels from the brain to the body? | Motor
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| What is a stable internal envionment? | homeosatsis
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| What mechanism is used to maintain a stalbe internal environment? | Feedback Inhibition
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| What is the name of the chemical that travels across a synapse to the next neuron to continue an impulse? | neurotransmitter
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| Which part of darwin's theory is represented when lions prey on antelope and some escape? | Survival of the fittest
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| Which characteristic of a population best explains why some species survive while others do not? | biodiversity
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| Why do lethal recessive alleles remain in a population | heterozygotes
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| Which of Mened;s laws does a dihybrid cross prove? | Independent Assorment
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| What is the chance of a male child during fertliization | 50%
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| How ddoes genetic drift affect biodiversity? | decreases it
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| Name one positive thing taht results from mass extinctions | opens up habitats
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| What stage of protein synthesis occurs at the ribosome? | translation
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| During transcription what base replaces thymine on the duplicated stranc? | uracil
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| What type of mutation will shorten the DNA strand and change every amin acid after it? | deletion
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| What varies among proteins resulting in different functions | amino acids
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| Which bases do DNA and RNA share? | guanine, cytosine, adenine
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| What two organisms are carriers of recombinant DNA? | Bacterial plasmids and transgenic organisms
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| What tool is used to cut DNA into fragments? | restriction endonucleases (enzymes)
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| What ddoes natural selection act directly on? | Phenotypes or allele freuencies of a popluation
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| How are lethal alleles maintained in a population | heterozygotes
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| to help remove lethal alleles, what type of male should you remove from a population | heterozygote
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| Define natural selection | ability to survive and reproduce
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| What are the two main sources of variation in a population? | mutations and gene shuffling
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| In order for speciation to occur, what must happen to the original population? | Isolation geographic or behavior but eventually reproduce
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| While observing rocks, if one layer has very few species and another below it has many different species, what does this prove has occurred? | Mass extinction
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| What is the most important factor to ensuring species survival? | biodiversity
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| During photosynthesis what is the carbon dioxide used to produce? | sugar or glucose
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| Which part of the cell is the packaging factory | golgi
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| Name the two factors that can reduce enzyme activity if they are outside the optimum range. | pH and temperature
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| What kind of organism will always be a prokaryote | bacteria
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| Why do we use control groups in experiments? | to compare to the results of the test group
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| What is produced from meiosis | 4 different haploid gametes
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| Hemophilia usually affects males but can affect females, but it is rare. What can you infer about how this disease is transmitted? | Sex-linked recessive on X
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| What stage of protein synthesis occurs at the ribosome? | translation
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| Identify 3 things that we have produced from genetic engineering. | Clones, transgenic organisms, medicine, more food
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| What is the most immediate natural cause of genetic variation? | Mutations
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| Where does transcription occur and what does it produce? | Nucleus; mRNA
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| Where does translation occur and what does it produce | ribosome and proteins
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