Question

An organism and its taxonomic key are shown below.


Taxonomic Key
Step Characteristic Organism
1 8 legs Go to step 2.
More than 8 legs Go to step 3.
2 One body region Go to step 4.
Two body regions Go to step 5.
3 One pair of legs on each body segment Centipede
Two pairs of legs on each body segment Millipede
4 Less than 1-millimeter long Mite
More than 1 millimeter long Tick
5 Claw-like pinchers Go to step 6.
No claw-like pinchers Spider
6 Longtail with a Stinger Scorpion
No tailor stinger Pseudoscorpion
Which organism is shown in the image? (1 point)

a
Centipede

b
Millipede

c
Mite

d
Scorpion

Answer 1

What should be Subtracted from 5y2-xy+2x2 to obtain -5x2+6y2+13xy