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Which of these is not an example of intracellular? A. A message is distributed across plasma membrane B. An electrical signal causes muscles to contract together C. A molecule stimulates a target cell
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Which of the fallowing provides support and protection for many insects mussels skeleton spinal cord exoskeleton
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Over a 200-year period, a volcano erupted once. According to this information, what is the yearly frequency of volcanic eruption? A. 99% B. 20% C. 0.5% D. 1%
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In mammals, the process of inspiration involves A. alveolar collapse. B. negative pressure generated in the chest, causing the lungs to expand to fill the vacuum. C. the ribs and diaphragm pulling on
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Why do you think there is a basic difference between the kinds of fertilization most common in aquatic and terrestrial animals?
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Some species form social groups only with members of the same gender. For example, elephants form groups with only females and their offspring. Once the male offspring reach a certain age, they leave
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Which sentence in the passage points out the similarity between parthenogenesis and sexual reproduction?
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HELP? due today :(! Observe this diagram of a plate boundary. One statement BEST describes what is happening. It is that A) the oceanic crust is melting. B) volcanic islands are forming. C) this is
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During ecological succession, how does the growth of young hardwoods affect the organisms living in an ecosystem? A.Grasses and low shrubs are unable to obtain the amount of light they need to survive
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Food webs such as the one shown were first used in 1927 by the animal ecologist Charles Elton. The food web below represents the feeding relationships among organisms in an Alaskan ecosystem. A.Auklet
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Gene expression in all organisms depends on protein synthesis. What is the last stage in protein synthesis, in which amino acids are assembled by tRNA?
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Identify the muscles of facial expression being contracted in each of these photographs (a-c), using the terms provided
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What variables other than beaker pressure could you change to return the glomerular filtration rate to "normal" (the value when beaker pressure is 80 mm hg)? choose the correct combination below?
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Examine the phylogenetic tree below. Which two organisms are most closely related?A) euryarchaeotes and diplomonads B) Euglena and brown algae C) brown algae and red algae D) brown algae and dinoflage
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Which statement best describes how modern taxonomists classify and organism?A) They examine the vestigial structures of the organism.B) They use DNA sequences to determine if the organisms makes prote
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Students conducted an analysis of baking soda in chemistry lab. During the activity, they had to calculate the mass in grams of the baking soda being used. Student data appears in the table. At the en
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Compare the change in thickness of the uterine lining with the change in progesterone levels for days 10-27
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Trey and Randall are conducting an experiment to test the effects of watering plants with deionized water compared to tap water. They take 20 plants of the same size and species, kept in the same area
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Questions are to be answered in full sentences. Answers should be approximately 125 words each or two to three paragraphs each.1. Begin with the information in DNA, a specific gene. Describe how
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The ________ is a membrane-bound organelle that contains an organism's genetic material and helps control and regulate cellular processes.
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Were you able to correctly identify all of the minerals on the first try? Which identification test did you enjoy most? Why? Which identification test did you think was least helpful for identificatio
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Questions Were you able to correctly identify all of the minerals on the first try? Which identification test did you enjoy most? Why? Which identification test did you think was least helpful for ide
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In what type of cell do genes contain exons which are interrupted by introns, that are spliced out after transcription.
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A patient is diagnosed with a hodgkin type of lymphoma based on the results of lab tests and a study of the tumor cells. a distinct characteristic of hodgkin lymphoma is the presence of
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An important function of the spleen is to destroy and remove worn out red blood cells. true or false
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A brief stressor activates the _____ nervous system. a prolonged stressor releases the hormone _____.
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How are endosperm formed (please give a detailed responce)? what is the polidy # of endosperm cells?
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Assume that a pet scan was made of the brain of a person speaking and of the brain of a person smelling a flower. describe how you would expect the pet scan of each person's brain to look.
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The newborn nursery nurse suspects a newborn of having neonatal abstinence syndrome. what assessment findings would most correlate with the diagnosis
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Select all that apply. Which of the following countries exclusively use the metric system? United States France England Canada
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In andalusian fowl the heterozygous condition of the alleles for black plumage B and white plumage B’bis Blue
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The two graphs below show data at the beginning and end of a study on a certain population of parrots. Which type of selection do the two graphs illustrate? A) disruptive B) directional C) stabilizi
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A new fossil is found, and scientists are debating whether it can be considered a part of the human genus Homo. What piece of evidence would best indicate that the fossil is human?
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When comparing a well-designed muscular strength workout to a well-designed muscular endurance workout, you would conclude that __________. A. fewer repetitions with heavier weights would build muscul
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5. If a corn plant has a genotype Sstt, what are the possible genetic combinations that could be present in a single grain of pollen produced by the plant? (2 points) Ss, tt, St, st Ss, tt, St, ST St,
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An 85 kg object is moving at a constant speed of 15 m s m a circular path which has a trace of 20 M what force is it's in the in the body
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Weathering that does not alter the chemical composition of the rock is called a. chemical weathering. c. biological weathering. b. physical weathering. d. acid weathering.
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2.07 Forensic Science Lab questions Video link: http://www.pbs.org/video/history-detectives-hdsi-texas-servant-girl-murders/ 1. Describe the crimes that the History Detectives are investigating in the
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Answers should be approximately 125 words each or two to three paragraphs each. You may use your text book, Mastering Biology or other outside sources as references, and you must cite your references
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Think about a situation that makes me feel very nervous or anxious describe how this makes you feel inside what do you think is going on in your body?
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·supports and protects ·in fungi, is made of chitin ·in plants, is made of cellulose This cellular structure is the??
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At the center of the Andromeda galaxy is a source of x rays that scientist believe is a black hole with how many more times than the sun
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The increase of certain types of gases in the atmosphere has contributed to the problem of global warming. All thses gasses are
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The _______ is a maplike representation of where regions of the body are processed in the brain. a. retinotopic map b. topographic map c. somatosensory receiving area d. homunculus e. somatotopic repr
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How does insulin affect the target cells and tissues to lower blood sugar? (refer to your lesson for hormone mechanisms.)?
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Part b in what proportions the genotypes will be found? enter your answers as fractions separated by commas.
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A gene for skin color can mutate into a dominant allele that prevents the synthesis of pigment, causing albinism. you examine the birth records of five local hospitals and discover that there were 2 a
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Sodium dodecyl sulfate (sds) and triton x-100 are both detergents that can be used to lyse cells. if the goal is to study the activity of membrane proteins after cell lysis, which would be a better ch
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What conclusion about the bases in the codons of amber and ochre mutations can be made from these observations?
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Intestinal worms, like tape worms, are parasites that are too large for phagocytosis. Therefore, they are weakened and destroyed by ______________.
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