If the inner lining of the air sacs neither thin nor highly vascularized, then it can be inferred that AIR SACS ARE CANNOT BE THE SITES OF GASEOUS EXCHANGE BETWEEN AIR AND BLOOD. Air sacs are generally lined with mucus and surrounded with blood capillaries.
In case of birds, air sacs play an important role in respiratory system.
Cells, tree, digestive system, public transportation system, government systems, school systems, families, dog, forest, pond, prairie, communication systems, towns, insect, solar system, weather systems, bird, correctional system, squirrel, soil, etc.
Answer:
Wild boars have successfully established in areas with warm climates.
Explanation:
As you can see in the description of the map shown in the question above, wild boar, although an invasive species in the USA, settled more easily in Texas, California and Florida, and along the southern notes, which are regions that usually have a climate hot most of the year. This means that wild boars have greater affinities with warm climate regions within the country.
An invasive species is one that is taken to a region where it does not occur naturally. These species can become real pests if the invaded environment does not have natural predators that limit their multiplication.
Answer:
Flower color is a characteristic
Explanation:
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