Fluorite can scratch a copper coin but cannot be scratched by a copper coin.
This is because according to Mohs scale of hardness, fluorite has a hardness of four. Copper has a hardness of three. Therefore fluorite is a harder mineral than copper and will scratch copper but it will not be scratched by copper.
Mohs based his scale on the fact that some minerals could scratch others. If one mineral could scratch another but could not be scratched by it, he reasoned that it must be harder.
The right answer is a. they contain many small, repeating subunits bonded together.
In chemistry and biology, a polymer is a molecule made up of a chain of similar molecules, called monomers; a polymer is a macromolecule resulting from the assembly of many identical units (monomers), a chemical compound with repetitive structural units.
DNA, glycogen and proteins are polymers
Answer:
♡Technically, You need an example of each definition.♡
-- Here is the answers.
Explanation:
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1. One cell for a Phagocyte is called amoeba.
2. A cell that produces antibodies is called B lymphocytes.
3. A cell which produces histamine in an allgeric response is called antigens.
4. A cell that allows the secondary response to be faster than the primary immune response is called Antigen‐specific T cells.
5. A cell which differentiates to form a plasma cell is called B cells.
6. A cell that destrosy cells which are infected with a pathogen (in cell mediated response is called cytotoxic, helper, and suppressor T cells.
Hope I could help you, sorry I am late! :(
Have a great day! (´｡• ᵕ •｡`)
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Wave of option A has the highest frequency.
Option A.
<h3><u>Explanation:</u></h3>
Frequency is defined as the total number of complete waves in an unit time. A complete wave consists of a complete cycle of the amplitudes of waves.
In all the figures, we see transverse waves. They have the mean position denoted by a straight line, and the waves do oscillate up and down to complete a full cycle. The most number of waves in a given time has the highest frequency. If we count the full number of waves in the particular given time, Wave A has 5.75 complete waves, wave B has 3.5 complete waves, wave C has 2 complete waves and the wave D has 2.75 complete waves. So the wave A has highest number of complete oscillations in a given time. So wave A has highest frequency.
Answer:
Can you please enter the statements? I will edit answer.
Explanation:
