Biology

14) Besides being prescribed to humans, explain one other ways antibiotics are being used.15) How was NFL football player Daniel Fells affected by bacteria and antibiotic resistance?16) What was Alexander Flemings contribution to science?1) Use evidence from the passage and Rise of the Supergerms to explain why it is important to search for new antibiotics.2)According to the passage above, why is it beneficial to study bacteria found in nature to try to discover new antibiotics?3) Explain the problem the scientists were trying to solve in developing the iChip. 4) Why do you think it is important that bacteria be placed in individual pits in the iChip?5) Why is the discovery of text actin so important in the fight against antibiotic-resistant bacteria? Use evidence to support the passage and Rise of Supergerms to support your answer.
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based on the -globin alignment, identify the best hypothesis about how humans are related to monkeys and gibbons.
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calculate the flow rate of blood through a capillary in cubic centimeters per second, given that the capillary has a diameter of 4.0 x 10-4 cm and the average speed of the blood is the capillary is 3.0 x10-2 cm/sec.
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Which of these carbohydrates may contain glucose as well as other monosaccharides?a. fiber b. amylopectin c. glycogen d. amylose
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the thin space between the parietal and visceral layers of the serous pericardium is the ______ cavity.-pericardial-epicardium-endocardial-pleural
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Which statement describes a way in which a society could conserve energy?OA. A hydrogen fuel cell factory could start producing twice as manycar batteries.O B. A city could develop a mass transit system that uses energy-efficient vehicles.O C. An oil-burning power plant could start generating twice as muchelectricity.D. A community could build more roads to encourage more people todrive to work.
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Construction of a solar power plant is proposed for a desert area near a school. A student has hypothesized that theshade cast by the solar panels will increase the mortality of creosote bush, a native desert plant in the area. Beforeconstruction begins, what experimental data should the student collect in order to eventually test the hypothesis?A: Average noise levels in decibels) at a construction site, compared to average noise levels in the desert 20 km away from theconstruction siteB:The rate of wind-caused soil erosion (in kg/yr) near solar panels at a similar desert location where creosote bush growsC:The direct sunlight received by creosote bush in the desert area (in kWh/m2) during a 12-month periodD: The changes in monthly precipitation (in mm/yr) at a similar desert location where creosote bush grows
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when the his- salmonella strain used in the ames test is exposed to substance x, no his revertants are seen. if, however, rat liver supernatant is added to the cells along with substance x, revertants do occur. is substance x a potential carcinogen for human cells? explain
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which theory explains the origin of chloroplasts and mitochondria? group of answer choices the theory of natural selection the endosymbiont theory the cell theory the geologic time theory the theory of evolution
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the cell type that produces proteins and most molecules of the ground substance in cartilage are known as
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Which statement best describes a monohybrid cross?O a cross in which no characteristics are studiedO a cross in which traits of several different characteristics are studiedO a cross in which the traits of a single characteristic are studiedO a cross that studies only the offspring of one homozygous and one heterozygous parent
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yeast mitochondria normally have tubular morphology. two mutants are isolated that have fragmented, instead of tubular, mitochondria. the two mutants are crossed and all progeny have tubular mitochondria. what do you conclude?
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Give three types of organic compounds that can be broken down for energy
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describe the role of checkpoints in the onset of cancer
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A solution of potassium chlorate, KClO3, has 10 grams of the salt dissolved in 100 grams of water at 40 C. Approximately how many more grams of the salt can be added to the solution before reaching the saturation point?
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if a gene is found only on the x chromosome and not the y chromosome, it is said to be
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which heart chamber pumps oxygen-rich blood out to the rest of the body?
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in a study of human blood groups, it was found that among a population of 400 individuals, 230 were rh and 170 were rh-. assuming that this trait (i.e., being rh ) is controlled by a dominant allele (d), calculate the allele frequencies of d and d. how many of the rh individuals would be expected to be heterozygous?
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Aaron's mother has Multiple Sclerosis. One of the features of this disease is the slowing down of nerve impulses. What part of the neuron could be affected by MS?A. The myelinB. CerebellumC. Frontal lobesD. Basal ganglia
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which of the following statements is false? which of the following statements is false? eukaryotes have a much simpler genetic makeup than prokaryotic cells. eukaryotic cells evolved from prokaryotic cells. prokaryotes are unicellular and lack a membrane-bound nucleus. eukarya is a eukaryotic domain. archaea and bacteria are prokaryotic domains.
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why is it important that dna replication take place before cell division? what would happen if cell division of a body cell took place without dna replication, or when dna replication was incomplete?
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Rank the following items in order from largest to smallest: cell, chromosome, gene, DNA,organism, nucleus
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Each kingdom can be divided into different domains.True or False
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How is the morphological species concept different from the phylogenetic species concept?
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