Which of the following is true of Darwinian “fitness”? (select 2 options)

Teaching an animal a “trick” requires the use of several mechanisms we have talked about in this unit. For example, to teach a dog to lay down on command requires pairing: 1. The phrase “lay down” (Arbitrary stimulus) 2. The act of laying down (Behavior) 3. And a treat for successful attempts (Reward)   What types of learned behaviors are being used in this process? (select 2 options)

Male stickleback fish react aggressively to other males in their territory. Even when raised in isolation (without ever having seen another fish), these fish will carry out an elaborate series of intimidation behaviors whenever they see an intruder. Through experiments we learned that the sticklebacks aren’t actually reacting to the image of another fish, but rather the color red.   Which of the following are true? (select 3 options)

Evolutionary relationships among species can be determined by comparing… (Select 3 options)

2021-2: The nurse makes a medication error. Which action will the nurse take first?

During pregnancy, iron requirements are:

Which of the following is true of genetic variation? (select 4 options)

A patient has gained 4.4 pounds as a result of fluid retention. The nurse correctly estimates this weight gain is equivalent to approximately how much fluid?

The prescriber orders ranitidine HCl (Zantac) 60 mg IV every 6 hours for a patient weighing 68 lbs.                Dosage range: 5-10 mg/kg/day in 4 divided doses                The pharmacy has supplied ranitidine HCl (Zantac) 90 mg/6 mL   A)    What is the safe range/dose? _____________mg (tenth)  B)      Would you administer this medication and why?  _______________ [reason]  

The prescriber has ordered acetaminophen (Tylenol) 500 mg, by mouth every 6 hours for a temperature >101◦F. The patient weighs 65kg and has a temperature of 101.4◦F. Safe dosage range: 40–50 mg/kg/day in 4 divided doses. A. What is the safe dose range/dose? ________________mg (If rounding needed, round to the whole) [mg] B. Would the nurse administer this medication and why? _________________________ [reason]