With shorter necks, giraffe ancestors could not reach food-containing branches on tall trees. This resulted in the directional selection of giraffes with longer necks.
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Why is choosing a direction necessary? </h3>
It nearly appears obvious that the giraffe's long neck developed as a result of a lack of food in the lower branches of trees. The giraffe has a significant advantage because it is taller than any other mammal and can feed where few others can.
When compared to modern giraffes, the giraffe's ancient predecessors had a shorter neck. The plants that were lying at a higher level were inaccessible to them. Giraffe phenotypes have changed in various ways, and now have long necks to reach vegetation that is higher up. The extreme form is chosen above other features in directional selection. It was decided to choose the long-necked giraffe over the short-necked.
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Answer:
neurocysticercosis
Explanation:
Cysticercosis is the infection caused by the cystic form of the pig's tapeworm, Taenia solium, and neurocysticercosis is when the central nervous system (CNS) is affected. It is usually possible through direct ingestion of helminth eggs, but it can also occur in a usual infestation (teniasis). It is an endemic condition in several countries in South America, Africa and Asia, accounting for about 29% of the causes of secondary epilepsy in these locations. It can also cause headache, hydrocephalus, meningitis, and even central nervous system infarction.
Answer:
in the first question
the air move from higher concentration to lower concentration and lower to higher
Explanation:
when the oxygen gets in the place in the chest increase and when we release the air the will be contracted
when the air is outside chest will have no air
outside air will get into chest
and in verse vice
Answer:
Nitrogen-fixing bacteria, microorganisms capable of transforming atmospheric nitrogen into fixed nitrogen (inorganic compounds usable by plants). More than 90 percent of all nitrogen fixation is effected by these organisms, which thus play an important role in the nitrogen cycle.
Explanation:
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The answer is protein
Osmosis happens when the osmotic pressure of two container separated by semipermeable membrane is different. The osmotic pressure could be exert by polar solute because they will attract water molecule. Protein, glucose, and sodium chloride is the common molecule that could cause osmosis. But protein is the main substance that keep the osmotic pressure of the blood in the body.
