The steps involved in gas exchange in a fish are shown in random order. V - Water passes over the gills.
W - Water moves through the mouth.
X - Water passes through slits on both sides of the fish.
Y - Oxygen moves into the blood.
Z - Carbon dioxide moves into the water.

Which lists the correct order of the steps?

A. V, W, X, Y, Z
B. X, Z, W, V, Y
C. W, X, Y, Z, V
D. W, V, Y, Z, X

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!

answer: for each 3 girls there is 2 boys . 3: 2

hope this ! (:   mark me as brainliest if you can

i can answer this question sweetie!

step-by-step explanation:

heyyy

step-by-step explanation: