Answer: lower atmospheric pressure
Explanation:
During the inspiration process the diaphragm, and external intercostal muscles. The contraction of the diaphragm causes the increase in the size of the thoracic cavity this causes the contraction of the external intercostal muscles. As a result of this the ribs and the sternum get elevated.
This causes the lungs to expand, and increasing the volume of the air passage. In this response the air pressure inside the lungs reduces below the air outside the body. Thus this facilitates the movement of the gases from a region of high pressure to low pressure, this way the air rushes into the lungs.
Answer:
c. some drug-resistant bacteria were present at the start of treatment, and natural selection increased their frequency
Explanation:
Answer:
The rock type, newspaper ,
cotton or plaster of Paris to collect the fossil
Method of collection .
Documentation or labelling.
Magnifying glasses.
Explanation:
Fossil is fragile as it contain the remains of dead of plants and animals on it. Fossil can be collected from sedimentary rocks instead of metamorphic rocks because sedimentary rocks contain strata or layers of fossils.
The method of collecting fossils entails how the fossil is collected and it should be wrapped in news paper, aluminum foil or plaster of Paris so as to preserve the imprints of the remains of dead plants and animals.
The collected fossils should be labelled properly and well documented to avoid missed up or loss of some certain information using pen or paints.
Magnifying glass can be used to view it.
The amount of energy decreases as you go up in the food chain.
Answer: In all of these carrying capacity would go down substantially.
Explanation: This is because these natural disasters are very detrimental to the environments and would decrease life.