Answer:
This is because fluids have a polar nature, so they couldn´t cross the lipidic bilayer that constitutes the plasma membrane
Explanation:
Plasma membranes are contituted by lipid bilayers. These kind of compounds are hidrophobic (they reject water) and don´t permit the freely passage of hidriphilic molecules that can disolve in water, constituing fluids. Because of that cells developed transport mechanism like endocytosis.
Charles Darwin made the observations which led to the theory of evolution.
Climate of Russia
This area of Russia is famous for its extreme climate with very cold winters, but warm to hot summers, although they tend to be short and wet. ... The north and northeastern areas around the Black Sea have milder winters, but frequent rainfall all the year round.
Climate of Finland
July temperatures in Finland average 13 to 17°C. February is usually Finland's coldest month, with temperatures averaging from - 22 to -3°C. In northern Finland, winter temperatures often drop as low as -30°C or even down to -50°C, sometimes with strong, cold easterly or northeasterly winds.
Climate of Minnesota
Minnesota has a continental climate, with hot summers and cold winters. ... Temperatures as low as −60 °F (−51 °C) have occurred during Minnesota winters. Spring is a time of major transition in Minnesota.
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<h3><u>Benefits of smooth stem over rough stem:</u></h3>
Smooth stem plants like guava, eucalyptus etc do have a smooth layer of bark over its stem that comes out as a skin when they shed their barks. Whereas most of the other plants like mango, banyan etc do have a rough corrugated layer of bark over their stem.
The smooth stem doesn’t let water to accumulate in the bark which can led to infections to the tree. It also doesn’t allow any seed to settle on bark that can led to growth of parasites. Thereby this smooth bark saves the trees from some of the probable harm to the tree.
