3 POINTS HURRY! What is the relationship between biotechnology, sharkskin, and disease resistance?

Bioengineers have developed an artificial sharkskin that does not allow resistant bacteria to grow on it.

Disease-causing microbes have been genetically modified to keep them from infecting the skins of sharks.

Scientists have created a device that can be attached to the skins of sharks that dramatically increases their abilities to resist disease.

Sharkskin produces many chemicals that can be collected and used to create antibiotics.

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.

the answer is 100% density i've answered this question before and done the quiz myself.