Numerade

Questions asked

BEST MATCH

Within six months of effectively using the antibiotic methicillin to treat Staphylococcus aureus bacterial infections in patients, all new infections are caused by antibiotic resistant strains. Which of the following explanations is most consistent with the theory of evolution by natural selection? A. In response to treatment with methicillin, all S. aureus bacteria make antibiotic- resistant versions of the protein targeted by the drug. B. Methicillin resistant S. aureus were present in some patients before treatment and antibiotic use increased the frequency of methicillin resistance in the population. C. The antibiotic caused mutations in S. aureus bacteria that made it resistant to further treatment by antibiotics. OD. A and C only E. A, B and C

View Answer

BEST MATCH

Can you draw this based on the step provided: Step 1**Understanding the Chromosome Composition** - The cell is 2n = 6, meaning there are 6 chromosomes in total, or 3 pairs of homologous chromosomes. - Gene A is heterozygous, so it has alleles A and a. - Gene B is homozygous dominant, so it has alleles B and B. - Gene D is homozygous recessive, so it has alleles d and d. - Genes A and B are on the same chromosome, while gene D is on a different chromosome.Step 2**Drawing Anaphase of Mitosis** - During anaphase of mitosis, sister chromatids are pulled apart to opposite poles. - Draw 3 pairs of sister chromatids being separated: - Chromosome 1: A and a (one chromatid with A, one with a) - Chromosome 2: B and B (both chromatids with B) - Chromosome 3: d and d (both chromatids with d) - Include spindle fibers attached to centromeres, pulling chromatids apart. - Show centrioles at opposite poles of the cell.Step 3**Drawing Anaphase I of Meiosis** - During anaphase I, homologous chromosomes are separated, not sister chromatids. - Draw homologous pairs being pulled apart: - Chromosome 1: A/a pair (one chromosome with A, one with a) - Chromosome 2: B/B pair (both chromosomes with B) - Chromosome 3: d/d pair (both chromosomes with d) - Include spindle fibers attached to centromeres, pulling homologous chromosomes apart. - Show centrioles at opposite poles of the cell.Step 4**Drawing Anaphase II of Meiosis** - During anaphase II, sister chromatids are separated, similar to mitosis. - Draw sister chromatids being pulled apart: - Chromosome 1: A and a (one chromatid with A, one with a) - Chromosome 2: B and B (both chromatids with B) - Chromosome 3: d and d (both chromatids with d) - Include spindle fibers attached to centromeres, pulling chromatids apart. - Show centrioles at opposite poles of the cell.

View Answer

BEST MATCH

Consider the first ionization energies for a given element below. How many valence electrons does an atom of the element have? Enter your response as a numeral. Ei1 = 737.75 kJ/mol Ei2 = 1450.68 kJ/mol Ei3 = 7732.68 kJ/mol Ei4 = 10,542.51 kJ/mol Ei5 = 13,636 kJ/mol Ei6 = 18,020 kJ/mol Ei7 = 21,711 kJ/mol Ei8 = 25,658 kJ/mol

View Answer

BEST MATCH

People had known for thousands of years that traits were passed from one generation to the next. They applied _____ in breeding plants and animals to keep desired traits and eliminate undesired ones.

View Answer

BEST MATCH

Case study Please review the following case and answer the following Fluid and Electrolyte Imbalance Name: John Brown Age: 35 Gender: Male Medical History: Hypertension, Type 1 Diabetes Mellitus Admission Reason: John was admitted to the hospital due to complaints of weakness, fatigue, and confusion for the past few days. He admits that he was on a guys weekend and he was not dilligent with his insulin treatment. Initial Assessment: Vital Signs: Blood pressure 160/90 mmHg, heart rate 110 bpm, respiratory rate 20 breaths/min, temperature 98.6\deg F (37\deg C). Physical Examination: John appears lethargic and confused. His mucous membranes are dry, and he has decreased skin turgor. A Basic Metabolic Panel is drawn (BMP) Laboratory Tests: Serum Electrolyte Levels: Sodium (Na+): 130 mEq/L (normal range: 135-145 mEq/L) Potassium (K+): 5.0 mEq/L (normal range: 3.5-5.0 mEq/L) Chloride (Cl-): 100 mEq/L (normal range: 95-105 mEq/L) Bicarbonate (venous CO2): 12 mEq/L (normal range: 22-26 mEq/L) Blood Glucose Level: 400 mg/dL (normal range: 70-99 mg/dL) Serum BUN & Creatinine: Normal Range Questions: What is your diagnosis for this patient? Interpret these lab value results. Are they normal or abnormal? Based on this patients diagnosis, what is the reason they are normal or abnormal? Sodium Potassium Chloride Bicarb Blood glucose level Should you check for an anion gap? Why or why not? What is the anion gap and what does this indicate? What is the management for the above electrolyte imbalance?

View Answer

BEST MATCH

What concept is Vygotsky known for, other than his cultural and biosocial development theory?

View Answer

BEST MATCH

Q1) Let $0 < r < 1$ and \{$x_n\}$ be a sequence satisfying $|x_{n+1} - x_n| \le r|x_n - x_{n-1}|$. Show that \{$x_n\}$ is a Cauchy sequence.

View Answer

BEST MATCH

ABC Corp is evaluating whether to build a new production facility for its robotics components. The facility will cost $30 million upfront to build and generate free cash flows of $9 million, $13.7 million, and $12 million in year 1, 2, and 3, respectively. The facility will become obsolete after year 3 and has no salvage value. What is the NPV of constructing the facility (in $millions) if it has a cost of capital of 11 percent? ? a. -2.00 ? b. -3.00 ? c. -4.00 ? d. -1.00 ? e. 0.00

View Answer

BEST MATCH

What is the joy and stimulation we experience in sport - an optimal mental state filled with pleasant feelings and energy - called?

View Answer

BEST MATCH

Be sure to answer all parts. The average density of a planet is 1.42 g/cm$^3$. What is its density in kg/m$^3$? (Enter your answer in scientific notation.) \_x 10$^\_$ kg/m$^3$

View Answer

beverly p.