Question

A study was conducted to examine whether female Blattella germanica (a species of Pearroach) prefer to eat cat food, cheese, ham, or peanuts. First, 200 mg of each of the 4 foods was separately placed into a single box. Then, adult female B. germanica were added to the box. Figure 1 shows how the mass, in mg, of each food in the box changed over time after the addition of the B. germanica. Table 1 shows the percent by mass of carbohydrates, lipids, proteins, and water, respectively, present in each of the 4 foods tested in the study.

Figure 1

https://i.imgur.com/FHqVONO.jpg

https://i.imgur.com/JUbQ61S.jpg

Based on Figure 1, the mass of cheese remaining at
4 hr was closest to which of the following values?

A. 140 mg
B. 176 mg
C. 185 mg
D. 190 mg

Answer 1

@Shadow

Answer 2

@AngeI

Answer 3

oh is this for ap bio? because i recognize that question...

time is shown on the bottom, so just look at the one labeled 4 hours (it's the 2nd group of bars). then, find the one for cheese (white) and estimate.

Answer 4

about where do you think it is?

Answer 5

is it C

Answer 6

that's what i would say

Answer 7

Suppose a company wants to use food as bait in a trap
designed to capture female B. germanica. Based on
Figure 1, which of the 4 foods should the company
place in the trap to maximize the chance of capturing
female B. germanica ?

A. Cat food

B. Cheese

C. Ham

D. Peanuts

Answer 8

so the graph shows how much food was left after the allotted time, right? and if you want to set a trap with the food, you want the one that was eaten the most. therefore, look for the bar that has the LEAST amount of food left, as it will be the one that was liked the most, and the best bait

Answer 9

what do you think?

Answer 10

Ah, I remember this from AP bio

Answer 11

yeah me too lmao. i took it last year
did you get a good score on the test?

Answer 12

i think it is B

Answer 13

Took it last year too
I suppose haha

Answer 14

you?

Answer 15

bill, are you looking for the one with the LEAST amount of food left?

Answer 16

yeah i got a 4

Answer 17

think about it; if there is a lot of the food left, that means the bacteria did NOT like the food. if there is not much left, they liked it.

if you want to set a trap, you'll want to set it with a food that they like to entice them

Answer 18

alright, i see for it has to be A. Cat food would attract it

Answer 19

cat food is the one with the MOST amount of food left, so therefore the one that the bacteria liked the LEAST

look for the bar with the LOWEST amount, because it's the one with the LEAST left, meaning the bacteria ate it the MOST and liked it the MOST.

Answer 20

Eh this one is from the ACT practice test but i remember in ap bio we had to do a similar lab on this with worm kinesis

here you need to look at the first graph. Cheese is the blank white. At 4 hrs mark, the bar goes to about 185 mg, if you notice. so it's....

Answer 21

oh dang, wrong q

Answer 22

we already answered the main question he had, we're doing his second one now

Answer 23

No it isn't A. Think about it, the company would want to capture them by getting them more attracted towards something.

Would you capture a mouse by laying cheese or broccoli?

just like that, you would use the food that's ingested more by the roaches.

Answer 24

oh is it roaches? i thought it was bacteria oops
same principle though

Answer 25

yes it's a b. germanica

Answer 26

MEANING a german Cheese Cakeroach

Answer 27

it's D

Answer 28

yeah D

Answer 29

yep!

Answer 30

Consider the 4 foods in order of the percent by mass of
proteins, from lowest to highest. From food to food, as
the percent by mass of proteins increased, the mass of
food remaining at 28 hr:

A. increased only.
B. decreased only.
C. increased and then decreased.
D. decreased and then increased.

Answer 31

the answers are on the ACT website if you just want the answers

and they have explanations too...

Answer 32

where ? send the link

Answer 33

nevermind

Answer 34

http://www.act.org/content/dam/act/unsecured/documents/Preparing-for-the-ACT.pdf

Answer 35

Did you find it???

Answer 36

yes i did, thanks a lot