The Toba super volcanic event caused a bottleneck in the human population by inducing an ice age .
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Answer:
A) Surface-active agents, or surfactants, decrease surface tension among molecules of a liquid.
B) Phenolics exert antimicrobial activity by injuring lipid-containing plasma membranes, which causes the cellular components to leak out of the cell.
C) Alcohols exert their action by denaturing proteins and dissolving lipids.
Explanation:
Answer:
A. Out of the cell. They want to move from high to low concentration (DOWN the concentration gradient)
Explanation:
Although the cuticle provides important protection from excessive water loss, leaves cannot be impervious because they must also allow carbon dioxide in (to be used in photosynthesis), and oxygen out. These gases move into and out of the leaf through openings on the underside called stomata (Figure 3b).
Urbanization is defined as “the process of making an area more urban” or an increase in the amount of people living in towns or cities. Industrialization is defined as “the development of industries in a country or region on a wide scale” meaning a strong military with modern weapons, factories to create things, modern cars and boats etc. Urbanization and industrialization put a strain on the environment because of carbon gases emitted, effectively warming the earth up, destruction of trees which lowers our overall oxygen available, destruction of animal homes which will kill animals or cause unwanted interactions between humans and animals, and the pollution of natural resources such as local ponds, streams or the ocean.
