Answer: Water is polluted
Explanation: Im so sorry if this is wrong btw but im pretty sure its right
The importance of fat in the diets of our ancestors was mainly a result of its energy-storing properties.
Option B
Explanation:
Earlier ancestors or say, hominids ancestor were at the inception of the evolutionary world developed a trend on eating whatever they could find. The ancestors are believed to be scavengers rather than hunters as the evolutionary and nutrition biology suggests.
They had to travel and work for the food and as they were scavengers, it was not guaranteed to have food on a daily basis, so the fat has energy storing properties and for which its importance was realized in the diet. Later when they became hunters, protein became more important in their diet.
it is a stationary front because the stationary fron does not move from one place.
The ribs articulate with the (a) thoracic vertebrae.
There exists 12 pairs of ribs. Each rib is a thin flat bone attached dorsally to the vertebral column as well as ventrally to the sternum.
First seven pairs of ribs are known as 'true ribs'. They articulate with the thoracic vertebrae dorsally and are ventrally attached to the sternum by means of of hyaline cartilage.
The 8th, 9th as well as 10th pairs of ribs do not articulate directly with the sternum but unite with the 7th rib with the support of hyaline cartilage. These are called 'false ribs'.
Remaining two pairs i.e. the 11th and 12th pairs of ribs are not attached ventrally and are thus, termed as 'floating ribs'.
To learn more about thoracic vertebrae here
brainly.com/question/5130476
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Respiration releases the energy
