The phrase, parasite and the host are always in intimate dance together depicts the co-evolution of the parasites according to the host.
In case, the host adapt to a certain character, the dependent parasite also need to evolve in order to survive. So, any change in the host's behavior cause changes in the behavior of the parasite. As, in the intimate dance, if a dance partner changes his position or moves, the associated partner also reacts according to the changes and matches with the other partner, so, that they always remain intimate.
Auxin, The substance responsible for cell elongation is auxin. This phytohormone is formed in cells at the tip of the shoot and is then passed from cell to cell.
The primary consumers ( herbivores ) feed directly on producers. The secondary consumers ( carnivores ) feed on the primary consumers and the tertiary consumers feed on the secondary consumers.
The secondary consumers would increase as the tertiary consumers would not be present. Finally, as a result, a number of the primary consumers would decrease.
Answer:
. pea plants usually self-fertilize.
