Suppose you found an igneous rock that had almost even amounts of silica, iron, and magnesium. how would you classify this rock? why?

The rock will be andesitic because it has a composition between granitic and basaltic.

Explanation:

In igneous rock:

Origin of magma. andesitic magma are generated at confluent plate boundaries wherever the oceanic geosphere (the outer layer of the planet composed of the crust and higher mantle) is subducted in order that its edge is positioned below the sting of the continental plate or another oceanic plate.A gray, fine-grained igneous rock. igneous rock consists chiefly of sodium-rich oligoclase and one or a lot of mafic minerals like mica, hornblende, or mineral. It usually contains little, visible crystals (phenocrysts) of oligoclase, it's the fine-grained equivalent of igneous rock.

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.    

the answers are as following:

1. c. double helix, nucleosome, coil, supercoil, chromosome

2. b. g2 phase, preparation for mitosis

3. d. interphase consists of the g1, s, and g2 phases

4. c. metaphase

5. a. chromosomes are duplicated before cell division so that each new daughter cell has a complete set