Heartwood. In contrast to sapwood, a term for the dead, clogged xylem cells near the center of a tree. Heartwood is the tree's main column of support.
1.Fish gills are organs that allow fish to breathe underwater. Most fish exchange gases like oxygen and carbon dioxide using gills either on side of the pharynx.
2.Gills are branching organs located on the side of fish heads that have many, many small blood vessels called capillaries.
3.The colour is red
4. A Gill filaments project from each arc between the dorsal upper and ventral lower surfaces of the filaments.
1.Disease resistance of one plant.
<span>2. Food-producing capacity of another.
Hope this helps xD</span>
<span>Vitamin D.
Vitamin D is made from 7-dehydrocholesterol and needs UV light in order to be activated. Because the children are not exposed to sunlight, they are receiving insufficient UV light.</span>
<u>Explanation:</u>
Note, Telangana is known to be an area whose climate is usually semi-arid, that is, it is an area that is dry and receives some small amount of rain.
Thus, plants in the Telangana region would usually possess the following adaptive features;
- ability to survive under extreme heat
- growing longer roots than normal in other to find water in the soil
- efficient water conservation especially in their stems.
