Answer:
La formulación clásica de selección natural establece que las condiciones de un medio ambiente favorecen o dificultan, es decir, seleccionan la reproducción de los organismos vivos según sean sus peculiaridades. La selección natural fue propuesta por Darwin como medio para explicar la evolución biológica.
Explanation:
A radar does these things. It can also detect what form of precipitation a weather system is carrying.
The right answer is 57 (%)
The Bohr effect is the decrease of the oxygen attached to the hemoglobin when the pH decreases or when the CO2 level increases.
at the level of the lungs, one tends to find slightly alkaline pH due to the reduced CO2 pressure compared to the blood level, therefore the affinity of the oxygen with the hemoglobin is high and corresponds to the green curve. or the saturation of oxygen is 100% to 100mmHg of oxygen.
At the tissue level, there is more CO2 (waste) and less O2 (since it is consumed) and the pH is more acidic than that of blood pH (due to CO2 and the decrease of bicarbonate at this level) . This causes a deviation of the curve to the right as shown in the diagram with the red color curve. A saturation coefficient of 43% at 30 mmHg of the oxygen can be observed.
When subtracting between the two values: 100 - 43 = 57%
The correct answer is sharp claws for climbing trees.
Animal adaptations are behavioral and physical adaptations, which assists animals to thrive and survive in their local habitats. When animals thrive in a habitat for a specific time, they ultimately establish mannerisms and physical characteristics, which assist them to work better in that surrounding.
The ground squirrels in African savannas live in underground burrows that they dig with the help of their sharp claws. The ground squirrels utilize their claws to form a better grip as they climb trees to reach and collect seeds. The claws also function as a defense mechanism to safeguard themselves and their young when they are attacked or threatened.