Biology

you are a birder (bird watcher), and your neighbor has put up several birdhouses in the yard as well as planting trees and flowers that attract birds. this is an example of
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saturation vapor pressure primarily depends upon air temperature.
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what is the energy source that powers the cotranslational movement of proteins across the er membrane?
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where does the majority of protein and lipid metabolism occur
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anatomically, how does the right bronchus differ from the left bronchus, and what effect might this have on the aspiration of objects?
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what information made rachel carson concerned about chemical pollution
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Which of the statements about the evolution of the citric acid cycle are consistent with existing knowledge?A) Early organisms may have lacked the enzyme *-Ketoglutarate dehydrogenaseB) The citric acid cycle may have evolved from two biosynthetic pathways in early life formsC) A reductive citric acid cycle can replenish oxidized cofactors such as NADHD) Although some organisms do not use the citric acid cycle under anaerobic conditions, they use a reductive pathway similar to the citric acid cycle to generate some larger moleculesE) The citric acid cycle may have originated from two pathways - a reductive pathway and an oxidative pathway
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formaldehyde: crosslinks DNA associated proteins to the DNAAntibody to transcription factor: binds DNA binding protein associated with chromatinAntibody/protein A bead: used to bind precipitate the chromatin bound to tthe specific transcription factorall of the abovenone of the above
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the study of neurospora mutants grown on various supplemented media enabled researchers to identify single genes involved in the arginine synthesis pathway. why was neurospora a better model organism than a human cell line for this study?
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Identify the monomers and polymers
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A large island in the Pacific Ocean has two large mountain peaks formed from dormant volcanos. As a result of rising sea levels due to climate change, the island has now become two smaller islands separated by a channel of water. The mountain peaks are in the approximate center of both islands. Which of the following species with populations that have now been separated on each island will likely undergo allopatric speciation if sea levels do not drop again?Choose one or more:A. a baboon species that lived throughout the extensive forest of the original island and does not like to swimB. a coastal iguana species known to swim and dive to eat algae growing on rocks in the intertidal zoneC. a plant species that produces windblown pollenD. a frog species that lives in a narrow range at the lower elevations of the mountain peaksE. a tree species that grows on the coast and has seeds that floatF. a bird species that was widespread throughout the original islandA. a baboon species that lived throughout the extensive forest of the original island and does not like to swimD. a frog species that lives in a narrow range at the lower elevations of the mountain peaks
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how can impaired elimination affect the integumentary system
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When a crocodile eats a fish, the interspecific interaction between the two could be expressed as ________ for the crocodile and ________ for the fish.A) -; -B) +; +C) +; -D) -; +
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synapses develop as a result of the growth of both and group of answer choices myelination; mitochondria. cell membranes; ion channels. dendrites; axons. vesicles; plasticity.
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Bacteria imbedded in proteinaceous material on medical instrument: a. usually die very rapidly due to lack of oxygenb. are difficult to destroy requiring a soak and scrub before disinfectionc. are difficult to destroy because they are all spore-forming anaerobic organismd. are difficult to destroy because most have a large cell wall composed of peptidoglycan
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You are sitting in a go-cart that is not moving. John then pushed the cart and it moved. What caused the go-cart to be still? Why did Johns push cause the cart to move?
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which early psychologist aimed to discover the mind's structure
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it was once believed that all life on planet Earth was dependent on the energy of the Sun. The exploration of which of the following biomes changed that belief? a. estuaries b. deep sea vent communities c. Arctic tundras d. abyssal plains
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the most dramatic metabolic change that occurs with fasting is
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which statement is incorrect about preparing a band for cementation?question 31 options:place the band gingival surface down on masking tape.place the band occlusal surface down on masking tape.wipe attachments with chapstick or wax.fill the entire inner surface with cement.
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According to Darwin's theory of evolution (choose all that apply) all individuals have an equal chance of surviving.a. Trueb. False
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(b) identify whether morphological data or amino acid sequence data are more likely to accurately represent the true evolutionary relationships among the species, and provide reasoning for your answer.
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During an infection with Listeria, an intracellular bacterium, APCs will present antigen on MHC II molecules.TrueFalse
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What is the bundle of nerves that rund down the spine called?
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