Biology

Can any of the other promoters be used to create a resistant corn plant?
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addictive drugs stimulate a brain region called the nucleus accumbens, which results in intensified feelings of pleasure due to the release of which neurotransmitter?
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which substance carries energy to the calvin cycle
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a whiptail ability to roll his tail is a dominant trait determined by a pair of alleles. r is the dominant allele and r is the recessive allele. of a whiptail is a tail-roller, what do you know for sure about his genotype?
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4. Equally spaced ink marks are made on the radicle of a pea seedling. The seedling, with its radicle, horizontal as shown, is pinned to a card which is placed in a screw-top jar with some water. The jar is left in darkness for 24 hours. (a) Make a drawing to show how the seedling might look after this time. (b) What is the advantage to the seedling of this type of response? (c) Why was the jar left in darkness?
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The shrimp digs to burrow itself and the goby fish. In case danger, the goby fish touches the shrimp with its tail to warn it. meaning to?
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Match them up please
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how motor units are used to influence the strength of whole muscle contraction and how the size of a motor unit influences the precision of muscle contraction (control)
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an animal has a diploid chromosome number of 20. suppose that in the first meiotic division of a germ cell, a single homologous pair undergoes non-disjunction in meiosis. if meiosis ii proceeds normally, how many chromosomes would be present in each of the four gametes that result from that meiosis?
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which of the following statements about small populations is true? which of the following statements about small populations is true? small populations are relatively buffered from the effects of demographic stochasticity. small populations have a greater degree of genetic variation than large populations. finding mates is always easy. small populations are more susceptible to extinction than larger populations are. small populations are relatively buffered from the effects of environmental stochasticity.
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a pea plant is homozygous dominant for seed shape and seed color and produces round, yellow seeds. what genotype is possible for the offspring?
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the aquiferous system, a system of pores and canals that function to bring water close to the cells responsible for food ingestion and gas exchange, is characteristic of what group?
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which medication prevents viral infections by priming the immune system against a specific virus? which medication prevents viral infections by priming the immune system against a specific virus? anti-inflammatory vaccine antibiotic diuretic
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Nearly __________ of the US population lives near coastlines.
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what does it mean if my bowl movements are neon green and shiny? I have a normal diet so I'm not sure please help!
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if you are not getting adequate calcium in your diet, calcitonin will be secreted, which stimulates osteoclasts to resorb bone and thereby increases calcium levels in the blood. question 2 options: true false
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what structure is considered the energy currency of the body? multiple choice polysaccharides amino acids adp atp
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describe the pathway of electron transfer from photosystem ii to photosystem i in light-dependent reactions.
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during the early miocene epoch of the cenozoic era, there was adaptive radiation of which kind of primate?
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what structures appear most distinct between the chimpanzee skeleton, the ancient hominid skeleton and the human skeleton? how do their skeletal structures correspond to the way they moved around?
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Which environmental change occurs most rapidly 1 decomposition 2 human population growth 3 forest succession 4 tornado
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Select the correct statement about absorptiona. 30% ingested materials have been absorbed by the end of the large intestine.b. carbohydrates diffuse across the villus epithelium and are then passively transported into blood capillaries.c. if intact fats are transported across the villus epithelium, an immune response may be generated.d. Amino acid transport is linked to sodium transport.The answer could be one choice or multiple choices
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what is a mold cast fossil and how are they formed?help me plss
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For a certain type of plant, the gene for red flower color is dominant whilethe gene for yellow flower color is recessive. Two plants with red flowersproduce an offspring with yellow flowers. Which best describes the genesof the parent plants?O both parents carry one recessive geneOneither parents carry a recessive geneO one parent carries two recessive genes, but the other does notone parent carries the recessive gene, but the other does not
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