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.
<span>homeostasis is the answer </span>
Since it has seeds yes its a fruit.
Answer:
used by scientists in classification
Explanation:
Classification is the orderly arrangement of organisms into groups based on their similarities biologically, morphologically and phylogenetically. Those with similar characteristics are put under the same group or taxon.
Answer:
D. Two eggs are fertilized by two sperm.
Explanation:
Fraternal twins are dizygotic or multiviteline, that is, they are formed from two eggs and fertilized by two sperm.
In this case two oocytes are produced and both are fertilized, thus forming two embryos. They are almost always formed in different placentas and do not divide the amniotic sac.
Fraternal twins are not very similar to each other, may or may not have the same blood factor, and may or may not be of the same sex.
They are also popularly known as different twins. In fact they are two ordinary (not identical) brothers who had a coincident gestation.
