The two processes that occur before the two strands of a DNA
molecule can separate during separate during the DNA replication is that their
hydrogen bonds should be broken in between of the molecule and bases and that
the molecule and the bases of it must be also unwind.
Answer: When sea ice forms in ocean salinity of surrounding ocean water increases. The salt plays an very important role in the ocean circulation.When sea ice is formed in an ocean then this indicates the insertion of salt into the ocean .The salinity of surrounding water increases as salt water is heavier i.e its density is more as a result of high density the water sinks.There is an exchange of salt takes place between ocean and the sea ice.This influences the ocean circulation and this circulation lasts upto several hundreds of kilometers.
Answer:
Cone dystrophy is manifested by the loss of acute visual acuity (which cannot be corrected with glasses), severe sensitivity to light (photophobia) and blind spots (scotomas) in the peripheral vision, which progress and produce poor vision in dimly lit or dark environments ("night blindness") and total loss of the peripheral visual field, which can be progressive.
Explanation:
Rod and cone dystrophies (CRDs) are inherited retinal dystrophies. They are included in the group of retinitis pigmentosa, and, more generally, in that of retinopathy pigmentosa. Cones are responsible for color and detail vision. Cone dystrophy is a disease of hereditary degeneration of the cone receptors, whose hallmark includes the "trilogy" of progressive loss of central visual acuity, disturbance in color vision and sensitivity to light (photophobia) which can be progressive.
Answer:
alpha decay because alpha particles have two protons and two neutrons
Explanation:
An alpha particle has a nucleus which is made up of 2 protons and 2 neutrons. It is actually a Helium cation.
A nuclear reaction involves the nucleus and the elementary particles contained within them.
If an isotope undergoes radioactive decay and the new isotope that forms has an atomic number that is 2 less than the original isotope,it shows an alpha decay has occurred.
The atomic number is the number of protons and it is the same as the number electrons for a neutral atom.
In this isotope, the reaction must have involved loss of two protons from the nucleus. The atomic number comes two less than that original one.
The mass number i.e number of proton + neutron is 4. Therefore, the mass number of the isotope would also decrease by 4.
This is to obey the law of conservation by mass.
Answer:
2
Explanation:
There isnt much humus in soil in the deciduous biome
