<h2>Answer</h2>
By the attraction between atomic particles of opposite charge
<u>Explanation</u>
An ionic bond is created by the attraction between atomic particles of opposite charge because when the charges are unlike they attract and in this type of attraction there is a complete transfer of charges. In the ionic bond complete transfer of charges takes place. Ionic bonds are formed between elements which have electronegativity changes greater than 1.4 or less than that. It is formed by a combination of cation and anion.
Answer:
Punnett square is a square diagram which is used to predict the genotype of the offspring produced by particular cross.
Let P and p be the alleles of the gene responsible for the flower colors in a plant.
The genotype of both the parents is given as heterozygous that is, Pp.
Two types of gametes would be formed P and p.
The cross is shown in the image below.
The cross would be result in offspring with three types of genotypes PP, Pp and pp in 1:2:1.
An enzyme. An enzyme is a protein speed up a biochemical reaction. It’s a catalyst.
Hope this helps :)
I only know this so far-
4 elements
Nitrogen (N)
Hydrogen (H)
Sulfur (S)
Oxygen (O)
More than 95% of marine species went extinct during that time period