How is a species defined?
O
A. By the allele frequency in the population
O
B. By the number of common ancestors
O
C. By the fixed alleles in the species
O
D. By the total number of chromosomes

chromosomes carry the genetic information for organisms. also, chromatin is the thread like dna which is located in the nucleus of an organism.

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.

weathering is the answer.