Answer
a balance and a graduated cylinder
Explanation
Density is mass per unit and it is property characteristic of a substance. The arrangement of the mass of atoms and their size is what determines the the density of a substance.
For a student to measure the density of seawater he/she is required to use a balance and a graduated cylinder where a balance will be used to measure the mass of the mineral sample and then a graduated cylinder to determine the volume.
Answer:
it happens when 2 organisms jelp each other beneficial.
Explanation:
eg:algae and leguminous plants.the algae live on the roots and take in the nitrogen from the soil,which the plant cannot do and needs for growth.it takes in the nitrogen and pases it to the roots and even make the soil loose for the roots to move and they get a living space(algae on the roots).
<span>Meristem cells divide and some of the new cells differentiate into xylem and phloem. </span>
When you cut up the carrot you increase the surface area of the carrot substantially. This increased surface area reacts with the atmosphere and makes the carrot (collectively the pieces) more exposed to bacteria and as a result the cut up carrots will go bad before the carrots as a whole.
