Answer:
Nitrogen
Explanation:
Nitrogen
The most abundant naturally occurring gas is Nitrogen (N2), which makes up about 78% of air (oxygen)
hope this helped!
Long Answer:
We put chlorine in our water because we want to be protected from bacteria. The chlorine keeps our water clean and nice and blue. If you have green water then it is time to get an enhancement of chlorine. Another reason we put chlorine in our water is so all the bugs that try to stick on us beneath the pool do not have a chance because they go to the surface and away to the skimmer. The last reason is, because we need to keep things away like dirty items that land in the water so we do not touch the water and get sick.
Short answer:
<span>We put chlorine in the water so we are protected from bugs and dirty things in our pool. Chlorine also keeps the water nice and blue so we know that it is clean.
Good Day!</span>
Each tissue is an organized assembly of cells held together by cell-cell (more...) In epithelial tissue, by contrast, cells are tightly bound together into sheets called epithelia. The extracellular matrix is scanty, consisting mainly of a thin mat called the basal lamina, which underlies the epithelium.
B.
Metastasis is the process by which cancer cells spread from their source to other regions of the body.
Answer:
50%
Explanation:
The allele for black fur (B) is dominant to the allele for brown fur (b).
- BB or Bb = black fur
- bb = brown fur
A male homozygous black mouse (BB) is crossed with a female brown mouse (bb). The male parent only produces<em> B</em> gametes and the female parent only produces <em>b</em> gametes. The F1 offspring will be 100% heterozygous Bb.
The F1 individuals will produce <em>B</em> and <em>b</em> gametes. If we cross the F1 individuals to each other (Bb x Bb), we'll get the following F2 offspring:
- 25% BB homozygous dominant
- 50% Bb heterozygous
- 25% bb homozygous recessive
So 50% of the F2 will be homozygous (BB or bb).
