4. a new species forms because of the formation of a mountain that divides one population into
two. what type of speciation is this?
5. the bell curve in polygenic traits is becoming narrower over time. what type of selection is
occurring?
6. what are the five conditions impacting the hardy-weinberg equilibrium?
7. how does natural selection impact single-gene traits?
8. what does the allele frequency have to total in the hardy-weinberg equilibrium?

one is through turgidity. this occurs before ground tissue ( collenchyma

and sclerenchyma cells) become well

developed to give structural support to the plant as it grows bigger. the xylem

tissue (composed of rigid tissue) of the young

plant render this support and also maintaining osmotic turgidity of the surrounding

plant cells.

lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.

the correct answer is d