Answer:
The options are
tapping the base of the pipette on the table
using subtraction to determine the volume dispensed
making sure that you read the volume with the liquid inside the pipette at eye level
reading only the final volume of liquid after dispensing
ensuring that air bubbles are not in the column of liquid inside the pipette
The answer is
using subtraction to determine the volume dispensed
making sure that you read the volume with the liquid inside the pipette at eye level
ensuring that air bubbles are not in the column of liquid inside the pipette.
Explanation:
A pipette is an instrument used in the laboratory for transporting and movement of liquid substances for various experiments. It is usually graduated to ensure accurate measurements of the liquid substance.
To ensure accurate reading of volume from a graduated pipette, precautions listed should be taken:
Using subtraction to determine the volume dispensed
Making sure that you read the volume with the liquid inside the pipette at eye level
Ensuring that air bubbles are not in the column of liquid inside the pipette.
He was born on July 20, 1822 in Hyncice, Czech Republic
The correct answer is D. Characteristic of prokaryotic and eukaryotic organisms
Explanation:
Cells are the basic unit of life as all living organisms are made of one or more cells; additionally, all cells are surrounded by a membrane and contain substances and organelles that allow them to grow, obtain nutrients, reproduce and other basic functions for life. Additionally, as cells are the basic unit of life they are characteristic of both prokaryotic and eukaryotic organisms, although the structure in cells differs in both as in prokaryotic organisms there is no defined nucleus or bounded organelles. Thus, cells are characteristic of prokaryotic and eukaryotic organisms.
Answer:
fast- flowing areas usually contain more oxygen than slow-flowing ones.
Explanation:
looking at the statement that accurately compares fast-flowing and slow-flowing areas of stream and water, we need to understand how they flow. a stream flow downhill and it can also flow in a perfect channel, except when flooding occurs and water overflows its channel and spread out across the area of the land. so, fast-flowing generally have higher levels of dissolved oxygen more than slow-flowing because slow-flowing are aerated.