Dorsal means back as in the back area. Example~ Many dolphins have a pronounced beak and all have a central dorsal fin and sharp teeth for feeding, mainly on squid and fish.
The answer is C) selective breeding. This means that humans are deciding what to breed which means this is not a natural selection, but rather an artificial selection.
Answer:
a gun that either fires or it doesn't
Answer:
Carbon dioxide, Oxygen
Explanation:
The circulatory system of our body works following two pathways -
In pulmonary pathway the deoxygenated blood is carried to the lungs while in the second pathway, known as systemic pathway, the oxygenated blood is carried to the various parts and organs of our body. Thus the completed sentence in the question will be -
Blood being pumped by the heart is circulated in two circuits. One circuit carries blood with high levels of carbon dioxide to the lungs, and the other circuit carries blood with high levels of oxygen to the body.
Answer:
Annual mean temperature and annual mean precipitation.
Explanation:
The major biomes of North American biomes include almost every one of these biomes, Tundra., Boreal, Deciduous, Prairie, Desert, montane and tropical. All these biomes are effects or influence the distribution of organisms by several biotic and abiotic factors as the organism is found in the biomes that help in their livelihood.
Abiotic factors that influence the biomes that are present in North America most are temperature and precipitation that can be measured in Annual mean temperature and precipitation.
Thus, The correct answer is - annual mean temperature and annual mean precipitation.
