My answer will be that the letter "A" in the chromosome refers to "adenine", which is considered as one of the five nitrogenous bases that are part of the nucleic acids (DNA and RNA), which was named in 1885 by Albrecht Kossel.
Question options:
A. 1.63
B. 0.47
C. 0.94
D. 1.15
Answer:
<u><em>A. 1.63</em></u>
Explanation:
To find the standard deviation,
we have the data:
6, 6, 10, 8, 10, 8
sum = 6 + 6 + 10 + 8 + 10 +8
= 48
mean = 48 / 6
= 8
Formula for standard deviation:
σ2 = Σ(xi - μ)2 / N
= Σ (6-8)2 +....+ (8-8)2 / 6
= 16 / 6
σ2= 2.67
σ = 
σ = 1.63
Answer:
secondary succession happens more often because it occurs after some kind of distribution that still leaves the soil intact (mudslide,bulldozing,shoveling,or scraping off an area)
The water in freshwater ecosystems like lakes, ponds, creeks, and rivers are more likely to freeze over in winter because it doesn't contain salt. The salt dissolved in marine environments prevents the water from freezing.