Answer:
Option A
Explanation:
Xylem is made of dead cells that transport water. Stomata are pores in leaves that help CO2 enter the plant. Chlorophyll absorbs sunlight (it cannot accept green light which is why leaves are green, cuz they reflect the green wavelenght)
Answer:
when oxygen and carbon dioxide gases are exchanged, carbogen is formed.
Answer:
d.They are still very common ,but threatened with increasing harvesting for timber.
Explanation:
Brazil's Araucaria trees:
These trees are very soft and can be cut so easily.Brazilian pines is also know as Araucaria tree.
Before 1950's or 60's the number of trees were more but now due to harvesting the number of trees become less.The these trees are used for timber and for glue also.
In the present time the availability of these trees threatened with increasing harvesting for timber.
So the our option d is correct.
Answer:
The correct answer is option B. ovalbumin.
Explanation:
Ovalbumin is the protein that makes approx 55% of the egg white protein. It is a protein that shows homology to the serpin superfamily however it does not inhibit the process of serine protease.
The ovalbumin or OVA is not a structural protein but a storage protein that helps to provide nutrition to the embryo during embryonic development.
Thus, the correct answer is option B. ovalbumin
