1. Spherical
2.Rod
3.Spiral
4.Comma
<span>C02 regulation, the carbonic acid-bicarbonate buffer regulation, H+ regulation, and gas exchange. These regulations are all done through the circulatory, excretory, and respiratory systems. They are all part of one big function, that is homeostasis.</span>
One example can be the needle shaped leaves.
In desert areas, there are not much water sources. So basically, any drop of water is precious. To help prevent water loss of plants, for example cactus has very thin leaves that are needle shaped. Or some even don't have any leaves. This can reduce the surface area of leaves and thus reduce the water evaporating to the outer environment.
Another example also shown on cactus is that they have very thick waxy cuticle. It can also prevent water from evaporating from the stem. So that's why you see the stem is very shinny.
Answer:
grass deer wolf grizzly bear
430
Explanation: when calculating this you repeatingly divide by 10. If you going the other way you multiply by 10.
