A substance that releases hydroxyl ions in water is a base. Acids on the other hand release hydrogen ions when dissolved in water, while salts release sodium. To define acids and bases the Arrhenius definition is used by scientists---this describes what substances are produce by each type of solutions. Under the Arrhenius definition salt and water can be used to predict the result of the neutralization of an acid with a base.
In Chemistry, Bronsted-Lowry definition has superseded the Arrehenius definition.
Answer:pollen grain
Explanation:
Because it contains male gametophyte.
A complete collection of single-use and high-throughput electrocompetent and chemically competent E. coli
Choosing the ideal competent cells for your cloning applications and workflows is a critical component of success. Aspects to consider when selecting your competent E. coli strain include:
Transfection method – chemical versus electroporation
Transformation efficiency – bacterial strain and genotype
Downstream application – protein expression, library production, general cloning
Explanation:
a
they form in the bone marrow
a red blood cell lives for approximately 120 days.
