Answer:
Arthropod.
Explanation:
Arthropods have an exoskeleton & jointed limbs. Insects and some other land arthropods breathe through a system of tiny body tubes called tracheae. Some examples of arthropods are a spider or a scorpion.
Answer:
Brain makes your movements but heart is what makes you live so its really up to you to choose which one you find more important both are necessary though so whether you pick brain or heart you will get a good grade as long as you explain why you choose it
Explanation:
<u><em>It May be Acids from Mines And Waste</em></u>
