Find the position and magnification of the image formed by a convex lens of focal length 100cm when the object is 150cm from the lens​

It really doesn't matter for any of the questions that you've listed.

How is it possible that phylogenies based on sequences from nuclear genomes and organellar genomes (i.e., chloroplasts and mitochondria) from the same group of species yield phylogenetic trees with different branching orders?   answer :   the genome of the endosymbiont is more closely related to members of the group in which it originally evolved, while the nuclear genome of the engulfing organism has its own evolutionary trajectory.