If a drastic change in environmental conditions results in a prolonged drought, how would the total population of ferns be affected and why?
the population would remain the same overall since only the strongest individuals would survive harsh conditions.
the population would diminish since the flagellated sperm need moisture to swim to the egg.
the population would rise and fall as usual until the genes needed to survive the conditions come to dominate.
the population would increase since the plants would reproduce at a greater rate under stressful conditions.

You have a linux system that has a 1000gb hard disk drive, which has a 90gb partition containing an ext4 filesystem mounted to the / directory and a 4gb swap partition. currently, this linux system is only used by a few users for storing small files; however, the department manager wants to upgrade this system and use it to run a database application that will be used by 100 users. the database application and the associated data will take up over 200gb of hard disk space. in addition, these 100 users will store their personal files on the hard disk of the system. each user must have a maximum of 5gb of storage space. the department manager has made it very clear that this system must not exhibit any downtime as a result of hard disk errors. how much hard disk space will you require, and what partitions would you need to ensure that the system will perform as needed? where would these partitions be mounted? what quotas would you implement? what commands would you need to run and what entries to /etc/fstab would you need to create? justify your answers.

In cell b18, enter a formula to calculate the amount budgeted for meals. this amount is based on the daily meal allowance and the total travel days (# of nights+1).

How would you categorize the software that runs on mobile devices? break down these apps into at least three basic categories and give an example of each.