The beginnings of a brain first become apparent around four weeks after conception when the neural plate folds to form the neural tube
Mass/volume
<span>for an irregular solid, the easiest way to determine volume is to fill a graduated cylinder to a certain level, record the level of water, then carefully place your solid in the cylinder and record the height of the water after the solid is in.
</span><span>the volume of a regular solid by measuring the lengths of its sides and determining the volume by multiplying length x height x width </span>
Answer:
The exchange of chromosome segment between non-homologous chromosomes is called translocation.
It is of two types:
There is an exchange of chromosome segments between two non- homologous chromosomes in reciprocal translocation.
- Non- reciprocal translocation
A part of chromosome is translocated from one non-homologous chromosomes to other so that one chromosome becomes deficient and another non-homologous chromosome gains the piece of chromosome and becomes long.
Hope this helps...
Good luck on your assignment..
Answer:
C. CH4 + 202 – CO2 + 2H20
Explanation:
CH4+O2-CO2+H20
The above equation represents combustion of methane to produce carbon-dioxide and water.
One carbon atom is present on the reactant side as well as on the product side. Four hydrogen atoms are present on the reactant side and two hydrogen atoms on product side. In order to balance this equation, we would multiply water molecule by two. Now there are four atoms of oxygen in the product side but only two on reactant side, so we will multiply oxygen molecule by two on the reactant side. Now the equation is balanced.
The balanced chemical equation is:
CH4+202-CO2+2H2O
This equation obeys the law of conservation of mass as the mass of the reactants is same as that of the products.
