Answer: Bones cells secrete an extracellular matrix that when combined with minerals becomes rock hard.
Explanation:
Answer:
meiosis is for reproduction and mitosis is for growth and repair
Explanation:
Paper chromatography is an efficient method since it uses little material and is relatively quick. The partitioning principle is used in paper chromatography for separations. Substances are divided between a stationary phase and a mobile phase in paper chromatography.
An analytical technique for separating coloured compounds or substances is paper chromatography. Since alternative chromatography techniques like thin-layer chromatography have taken its place in the laboratory, it is now largely utilized as a teaching tool (TLC). Two solvents are used in two-dimensional paper chromatography, which rotates the paper 90 degrees between solvents. This is helpful for sorting out complicated mixtures of chemicals with comparable polarity, like amino acids. There are three parts to the setup. A solution that rises the stationary phase as a result of capillary action is known as the mobile phase. The stationary phase typically consists of polar inorganic solvent water, while the mobile phase typically consists of a combination of non-polar organic solvents. In this instance, the stationary phase, water, is supported by paper. Polar water molecules are trapped in the cellulose network of the host paper's empty space. In contrast to paper chromatography, which uses less absorbent paper as its stationary phase, TLC uses a layer of adsorbent (often silica gel or aluminium oxide) as its stationary phase.
To learn more about Paper chromatography here
brainly.com/question/1394204
#SPJ4
This is with your feet together, arms at sides with the palms facing front and your face facing front
Your veins and arteries allow blood to flow to and from the heart to every part over your body. This is what keeps us alive.
Hope this helps! If there is anything wrong, feel free to tell me.
Have a nice day!
