Answer:
Answer number 2
Explanation:
So in Geology, Precipitation of rock layers took place over the last hundreds of millions of years...During that process many living organisms have died and are precipitated with the rock layers... Let me explain with an example.
Dinasours went extinct Million years ago while the Dodo bird went extinct a couple of hundred years ago
Would you expect to find Dinasour fossils in newer rock layers or the dodo? lets's say 200m deep? Dodo for sure, Dinasour fossils are waay too old to be found at such shallow deeps that's why fossils in newer layer of rocks are absolutely younger than fossils found at deeper layers
To get an average, you must add all of the numbers together, and divide that sum by the amount of numbers there are. There are 6 number, which is what we must divide by.

6.8g is the average for the set of measurements.
As in Plant ; Meristematic cells have high no of mitochondria as they have to duvide continuously!!
and in animal as for example , take a liver cell , they have high number of smooth endoplamic reticulum as they have to detoxify toxic materials !!
for more info; comment !!
Answer:
Answer is A, the slowed activity of the nasal cilia.
Explanation:
The nasal cilia are hair-like structure or projection. which are found in the mucus membrane. The germ , dust or particles that could cause irritation to the lung, are captured by the mucus. This mucus are moved away from the lung by the nasal cilia, either through the nose or swallow.
They can also be found at the air passage , moving mucus out of the lung.
In the case of the little girl, the girl experienced a running nose due to the slow activity of the nasal cilia, this is because of the col temperature.