Answer is a. neolithic where they use wild and domesticated crops and domesticated animals
When an object is heated the motion of the particles increases as the particles become more energetic. If it is cooled the motion of the particles decreases as they lose energy.
Rough endoplasmic reticulum is the site of the synthesis of proteins destined for export from the cell.
Answer:
I think it's two x chromosomes.
This question is incomplete; here is the complete question:
_____ is work done to keep equipment in good working order.
A. Defragmentation
B. Preventive maintenance
C. Virus protection
D. A maintenance schedule
The correct answer is B. Preventive maintenance
Explanation:
Maintenance refers to the processes done on machinery or equipment to preserve its proper functioning. Moreover, this maintenance is preventive if it is done to prevent equipment from breaking down or having any malfunctioning. Besides this, preventive maintenance is globally recommended because in this way equipment used at home or in business works properly. According to this, the correct answer is preventive maintenance.
