Answer:
Option B
Explanation:
ODD means Oppositional Defiant Disorder while CD means Conduct disorder.
Without initial presence of defiant disorder symptoms, Oppositional defiant disorder are not precursor to the development of conduct disorder.
Oppositional Defiant Disorder and Conduct Disorder are much more predominant in boys than in girls.
According to reseaches carried out,to boys, Oppositional Defiant disorder is a precursor to conduct disorder.
Answer:
b. a person has an emotional need for a drug
Answer:
Fraternal twins are from two seperate eggs.
Explanation:
The first part of the question is missing but any difference between fraternal twins can be explained by the fact that two seperate eggs are fertilized during the pregnancy so they have different genomes which leads to having different dominance of different genes and this leads to different expressions of this genes.
I hope this answer helps.
Giant covalent structures contain a lot of non-metal atoms, each joined to adjacent atoms by covalent bonds. The atoms are usually arranged into giant regular lattices - extremely strong structures because of the many bonds involved. The graphic shows the molecular structure of diamond and graphite: two allotropes of carbon, and of silica (silicon dioxide).
Answer:
the enzyme helps to break down food, the enzyme is in the
saliva. It can break down a big food molecules and divide it into a
simpler food molecules so that it can be digested. . Enzymes are
complex proteins that speed up the rate of chemical reactions.
