Biology (BIO201)

Question 1 Correct 4.50 points out of 4.50 Select the statement that most accurately describes the action of antimicrobial drugs today. Select one: a. Antiviral drug treatment is more effective than vaccination against a viral disease. b. Effective antiviral drugs have a long history of development and use. c. Antiviral drugs often result in toxic side effects due to their inhibition of host cell activity. d. The development of antiviral drug resistance has not been observed, as compa...

Question 1 Correct 4.50 points out of 4.50 Which of the following statement is incorrect about warts? Select one: a. They are caused by human papillomaviruses (HPV).

Question 1 Correct 4.50 points out of 4.50 Each of the following results in drug resistance, except Select one: a. a drug being pumped out of the cell.

Question 1 Correct 4.50 points out of 4.50 When microbes live independently but cooperate and share nutrients, it is called ______. Select one: a. symbiosis b. antibiosis c. mutualism d. synergism The correct answer is: synergism E. coli bacteria normally live in the human gut and produce vitamin K that the body uses. This is best termed a ______ relationship. Select one: a. parasitic

Question 1 Correct 4.50 points out of 4.50 Select the statement that most accurately describes the action of antimicrobial drugs today. Select one: a. Antiviral drug treatment is more effective than vaccination against a viral disease. b. Effective antiviral drugs have a long history of development and use. c. Antiviral drugs often result in toxic side effects due to their inhibition of host cell activity. d. The development of antiviral drug resistance has not been observed, as compa...

Bio 201 Exam 4 {2020} – Straighterline Question 1 Correct 1.00 points out of 1.00 Flag question Question text According to current scientific thinking, true multicellular organisms Select one: a. cannot be traced to any existing or fossil intermediate stages; thus, there is no current scientific theory for the process that generated multicellular organisms from unicellular ancestors b. descend from several different kinds of unicellular protists, which became multicellular thro...

Bio 201 Exam 3 {2020} – Straighterline Question 1 Correct 1.00 points out of 1.00 Flag question Question text Golden rice is golden in color because it is rich in Select one: a. chromium picolinate b. vitamin A c. vitamin C d. beta carotene Question 2 Correct 1.00 points out of 1.00 Flag question Question text Which of the following statements about DNA technology is false? Select one: a. DNA technology is now used to mass-produce human insulin b. DNA technolo...

Bio 201 Exam 2 {2020} – Straighterline Which of the following statements regarding thermodynamics is false? Select one: a. A single cell or the planet Earth could be a thermodynamic system b. Thermodynamics is the study of energy transformations that occur in a collection of matter c. An automobile engine is a closed system because it does not exchange energy and matter with its surroundings d. An open system exchanges both energy and matter with its surroundings Question 2 Cor...

BIO 201 Exam 1 {2020} – Straigterline Question 1 Correct 1.00 points out of 1.00 Flag question Question text In an ecosystem, energy Select one: a. comes ultimately from bacteria b. cycles along with chemical nutrients c. typically flows from producers through a series of consumers  d. typically flows from consumers to producers to decomposers Question 2 Correct 1.00 points out of 1.00 Flag question Question text Life is organized in a hierarchical fashion. Which of th...