Answer:
Its been past 25 min
Explanation:
sorry I couldn't get to it fast enough
Because the buildings might not be stable,
or no one knows what to do.
Hope helps!-Aparri
Speciation<span>. </span>Speciation<span> is the </span>evolutionary process<span> by which biological populations </span>evolve<span> to become distinct species. The biologist Orator F. Cook coined the term '</span>speciation' in 1906 for the splitting of lineages or "cladogenesis", as opposed to "anagenesis" or "phyleticevolution<span>" within lineages.</span>
The character state most likely is a that would be synapomorphy useful for determining evolutionary relationships within genus X is Antennae with fewer than 10 segments in species C, D, E, and F.
<h3 /><h3>What is a synapomorphy example?</h3>
For example, the presence of mammary glands is a synapomorphy for mammals in link to tetrapods but is a symplesiomorphy for mammals in relation to one another rodents and primates.
Thus, Antennae with fewer than 10 segments in species C, D, E, and F.
To learn more about synapomorphy click here:
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Answer:
A: Oxygen levels are low and, therefore, more red blood cells are produced, giving the athletes an advantage when competing at lower altitudes.
Explanation:
<em>At high altitudes, the partial pressure of oxygen is lower compared to lower altitudes</em>. The body system try to adjust to lower oxygen level by undergoing several physiological changes. Depending on the duration spent in high altitude, the body can either try to adjust in the short term or acclimatize for a longer term.
One of the processes the body undergoes during acclimatization is an increase in red blood cell production. The kidney secretes erythropotein in response to inadequate oxygen in body tissues, and this makes the liver to increase erythrocyte production.
The increase in red blood cell production correspondingly increases the oxygen-carrying capacity of the blood as a result of increased hemoglobin. This condition persists for a few weeks even after the body returns to lower altitude where oxygen is adequate. Increased oxygen capacity means the rate of energy production (through respiration) within the body will also increase
<em>Hence, those who acclimatize to high altitude usually experience increased capillary density, tissue perfusion and improved athletic performance at lower altitudes. </em>
The correct option is A.