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ACT Science Videos 67 videos

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ACT Science 3.5 Research Summary Passage 188 Views


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ACT Science: Research Summary Passage Drill 3, Problem 5. Which of the following adaptations to the experiment would test whether the ants were using visual cues to return to the nest?

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Transcript

00:04

Here's your shmoop du jour... with a few extra crackers...

00:07

A little birdie told us you just love reading about experiments.

00:10

Hit pause and enjoy this puppy. It's a freebie.

00:28

Which of the following adaptations to the experiment would test whether the ants were

00:31

using visual cues to return to the nest?

00:35

And here are the potential options...

00:38

Here's our chance to modify the experiment! We get to PLAY GOD...

00:45

Those scientists had all of the fun, designing an apparatus for

00:48

falling ants -- now it's our turn...

00:50

But what exactly is the question asking us to do?

00:55

Looks like we need to change the experiment so that we can determine whether or not the

00:58

ants are using visual cues to return to the nest.

01:02

Hmm...key word: visual. tVisual means relating o sight...

01:07

...so making the gap larger, option A, doesn't do anything to test if the ants are using visual cues.

01:13

Don't we all close our eyes when we're falling?

01:17

What about B? Removing leaves from the foraging ground...well, that has nothing to do with

01:22

vision or returning to the nest...

01:24

A double negative...in this case, it does not make a positive...

01:27

Moving on to C. Should we repeat the same experiment in the dark?

01:32

Well, what's the difference between light and dark? If the ants are using visual cues,

01:36

then they can only see them... in the light!

01:39

So if we want to test the ants to find out if they're using visual cues, we should do

01:44

the experiment in the dark and see if the ants can get back to their nest.

01:48

C's our answer!

01:49

And if we want to look at option D...

01:50

removing all of the ants from the apparatus probably wouldn't help us.

01:54

But hey, if we're bored and feel like playing God some more...

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