Two or more kinds of alkenes (a type of monomer) can combine to form a polymers. Alkenes are a smaller kind of molecule that are joined through covalent bonds to form polymers (a larger molecule) and produce a different kind of substance.
To create polyester two different kinds of monomers called ETHENE and PROPENE are needed to make double bonds in the chemical reaction.
Answer:
They contain a vacuole
(I think what the question is asking for)
Explanation:
The vacuole is what takes up most of the plant cell's mass. It stores water so when you have high turgor pressure, the vacuole presses against the cell wall while when the turgor pressure is low, the vacuole is shrunken.
Hope this helps with your question!
In 1859, Charles Darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. He defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".
Answer:
In Florida, measured in frequency of tornadoes for every 10,000 square miles, the coast between Tampa Bay and Fort Myers has a particularly high incidence, as do the western panhandle and parts of the Atlantic Coast.
Explanation:
Methylphenidate is a cerebral stimulant that can interfere with sleep, it should therefore not be administered within 6 hours of bedtime. It may also cause nausea, anorexia (eating disorder), and dry mouth, which interfere with appetite and adequate food intake; therefore it should be administered after the child has taken breakfast. It should be taken exactly as prescribed by the nurse or specialists and not as a needed basis.