B they are a Keystone species
keystone species
noun
a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.
Answer: Assuring that right device driver in installed in computer system.
Explanation:
Device drive is the file that is responsible for interaction that takes place between the hardware device and operating system.It helps in transmitting and receiving information and signals from the hardware device.
It is also known as hardware driver that states the specification of the hardware with which computer system is communicating.E.g- printers,scanners, keyboard etc.
According to the question,Eneida should check whether or not she has installed the correct device driver for printer .If device driver is absent or incorrect then printer will not function.
D. Both A and C are true.
Answer:
natural polymers and manufactured polymers.
Explanation:
False, it is rice that they rely on not corn
