C. <span>continue to divide even when they are tightly packed together.
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The given statement is False.
For a source of water pollution the pollutant can be any undesirable substance present in water.
These undesirable substances can be biological, physical or chemical.
Biological substances such as harmful microorganisms or physical substances such as plastic, garbage and other substances present in water can also be considered as the water pollution.
The chemicals, and other substances are considered as the source of water pollution.
-Subduction causes the lithosphere to be recycled at plate boundaries
At destructive boundaries, tectonic plates collide, the denser plate gets subducted under the less dense plate. The subducted plate dives into the mantle, melts and is recycled.
Explanation:
At the constructive boundary, as two plates move away from each other, magma from the mantle rises to occupy the void. The magma cools to form new crust in between the two plates.
As new crust is formed at the constructive boundaries and old crust is destroyed at destructive boundaries this maintains a balance that ensures the crust is maintained more or less the same size over time. The only difference is that the crust shift position due to these tectonic plates movements driven by convection currents of the mantle.
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Answer:
The stratum corneum cells are flattened (filled with keratin) and the stratum basale cells are cuboidal-shaped to columnar, this is achieved through the keratinization process.
Explanation:
The epidermis is the outermost layer of the skin, it protects us against toxins, bacteria and fluid loss. It's composed of 5 sub-layers of cells called keratinocytes. These cells produced in the innermost sub-layer (stratum basale), migrate to the outermost sub-layer (stratum corneum) maturing and undergoing a series of changes. This process, known as keratinization (or cornification), makes each of the sub-layers different.
The stratum basale consists of a single layer of cuboidal cells that are arranged above the dermo-epidermal junction. In the stratum basale are the stem cells (adult stem cells) of the keratinocytes, which rise to the keratinocytes of the interfollicular epidermis (lacks hair follicles). Trunk cells have a cuboidal shape to columnar shape.
The stratum corneum is the most superficial layer formed by degenerated keratinocytes called corneocytes. In the last stage, the corneocytes lose the nucleus, are filled with keratin, and are surrounded by a cornified cell layer formed by a shell of interlaced proteins, in addition to a lipid wrapped covalently bonded. The cell death of granular stratum cells causes the progressive loss of desmosomes along the stratum corneum, which leads to peeling or shedding of cell debris. Filaggrin is added to keratin in very tight beams, which causes the cell to collapse into a flattened form.