Which statement best explains why gneiss is composed of layers but there are no layers in granite? a. gneiss is a sedimentary rock and granite is a metamorphic rock. b. gneiss is a metamorphic rock and granite is a sedimentary rock. c. granite is formed due to the slow cooling of magma below earth's surface and gneiss is formed due to metamorphosis. d. granite is formed due to the accumulation of sediments and gneiss is typically formed due to intense heat and pressure.

The granite rocks are formed by the slow crystallisation of the magma below the earth surface, due to slow crystallisation of the magma, the rocks formed are uniform, and have no layers.

The gneiss rocks are formed by the metamorphosis of the granite and the sedimentary rocks. They are formed by the action of high temperature and high pressure. The gneiss rock is layered caused by the segregation of different types of rock, mainly made up of light and dark silicates.

Hence, the correct answer is option

C. Granite is formed due to the slow cooling of magma below Earth's surface and gneiss is formed due to metamorphosis.

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!

the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.