They wanted to become U.S citizens to have a better life.
Answer:
Stomata - specialized cells that contract and expand to open or close pores for gas exchange. Stomata can adjust to temperature, staying closed when temperatures are hot and dry to prevent gas and water loss.
Explanation:
Stomata (singular stoma) are pores found in the epidermis of plant leaves. Stomata open and close in response to the change in structure of two guard cells either side of the pore opening. When the guard cells are turgid, the stomata open, when they are flaccid, they are closed.
This functions to permit gas exchange while preventing the loss of water, especially during hot, dry weather. The stomata can only open when the guard cells are turgid, pulling the stomata apart.
<span>15. Groundwater is one of our most important natural resources. It provides us with much of the water that we use for drinking water, household uses, crop irrigation, and many other things. In fact, over 1/3 of Earth's population relies on groundwater for its needs, including 99% of the rural population in the U.S.
16. I dont know this one
17. </span>One type of cavern, known as solution caverns, are formed when large portions of limestone beneath the ground disintegrate and dissolve through the action of underground water. <span>Solutional caves are the most frequently occurring caves and such caves form in rock that is soluble, such as </span>limestone, but can also form in other rocks, including chalk,dolomite<span>, marble, salt, and </span>gypsum<span>.</span>
Answer:
Chloroplasts
Explanation:
Chlorophyll is produced in chloroplasts in the photosynthetic tissues of the leaf.
