Answer:
To be honest the Atmosphere is 72 percent nitrogen and 25 percent oxygen and
Ans.
Cell-to-cell communication allows signalling of essential substances between the plant cells, which are surrounded by cell walls. The molecules used by plants for long-distance signalling are known as hormones, such as auxin, ethylene, and gibberelin.
These hormones are secreted by one plant cell and received by another plant cell, where it exerts it affect. Thus, the correct answer to be fill in the blank is 'option A). hormones.'
Pro cells have cell wall but eukar don’t
Asexual reproduction produces offspring with identical DNA to the parent and sexual offspring has a combination of DNA from two parents.
