Ireally need captain ahab decides to build a boat with a flat,
rectangular bottom. he tests the boat's load capacity by
getting each of his sailors to enter the boat, one at a time.
as each sailor enters the boat he records the total mass
in the boat and the total distance it has sunk as a result of
the sailors in the boat. the data that follows indicates
the total mass of the sailors and the total distance sunk.
total total
mass distance
(kg) (cm)
0 0.0
51 5.0
113 11.1
183 17.9
251 24.6
332 32.5
407 39.8
466 45.5
a. what is the independent variable for this
experiment? how do you know?
b. what is the dependent variable for this experiment?
how do you know?
c. on a separate piece of paper, make a proper data
table.
d. on a piece of graph paper, make a proper graph of these data.

Tara sees a commercial for a brand of pills that promise to boost energy and people perform better in work and school. as people in the commercial talk about how much better they feel when taking the pill, tara notices a message on the bottom of the screen that reads, "this pill is not approved by doctors and has not been tested in controlled experiments." what is the best conclusion that tara should make about the commercial? it is making scientific claims based on subjective observations. it is making scientific claims based on opinions instead of pseudoscientific facts. it is making pseudoscientific claims based on objective observations. it is making pseudoscientific claims based on opinions instead of scientific facts.

The same agricultural practices are used in every country of the world. select the best answer from the choices provided t f

Astudent from one of the research labs is having trouble preparing a slide for examination and photographing. the bacterial slide that he has brought to you was prepared using a commercially purchased stain. he has asked for your in determining what he is doing wrong so that he can change the lab protocols and continue on with his project. after examining the slide under oil immersion, you determine that no bacteria are present even though the student is able to show you the culture he used to make that slide that has visible growth in the liquid medium. which of the following statements does not explain the fact that there are no bacteria present on the student’s slide? by not allowing a glass slide to completely air dry before heat fixation, the flame will cause the surrounding water to boil and this will damage the bacterial cell. overheating during the fixation step boiled the water within the bacterial cells and resulted in the cells bursting. insufficient heating of the slide did not drive out the thin layer of water and this resulted in minimal bonding between the bacteria and the glass slide. rinsing with alcohol during the washing step stripped the bacteria off the glass slide. rinsing with alcohol during the washing step stripped the bacteria off the glass slide.