Imagine that you are a detective who has identified a suspect in a homicide. you acquire a small amount of blood from the crime scene and hand it over to your lab. the lab carries out pcr for one polymorphism, and it returns as a match to your suspect. is this enough to arrest your suspect?
a: yes, a match between dna fingerprints is always definitive proof that the two sources are the same individual.
b: yes, the chance that your suspect will have the same polymorphism at a single site as a drop of blood from a random individual is about 1 in 50,000; this is enough to arrest the suspect.
c: no, your lab should assess additional polymorphisms; a single polymorphism does not constitute a dna fingerprint.
d: no, the small amount of blood you acquired from the crime scene will not provide enough genetic material for pcr to be carried out efficiently; more than a single drop of blood is needed to provide enough raw material for analysis.

a. by using fur or clothes to trap heat energy near the body

answer and explanation;

volcanic rocks are igneous rocks which form from lava, molten rock which has been thrust out of a volcano onto the surface of a rocky body such as an asteroid, planet, or dwarf planet.  

plutonic rocks are igneous rocks which form from subterranean chambers of molten rock or magma. plutonic rocks make up the base of continental crust as well as oceanic crust. their slow rate of formation causes them to be coarse grained since there is plenty of time for large crystals to form before the magma solidifies into rock.

the textural difference is that plutonic rocks are more coarse grained than volcanic rocks. plutonic rocks are coarse grained while volcanic are fine grained ; glassey or fragmental. since fine and coarse are adjectives the decision as to whether a rock is fine or coarse grained is generally made on the bases of whether or not the individual crystals can be seen in most if the rock.