Answer:
level 2 = 3,000 level 3=300
Explanation:
Only 10 percent will be transferred to the next level and 10 percent of 30,000 is 3,000. 10 percent of 3000 is 300
Answer: " erythrocyte sedimentation rate (ESR) " .
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Answer: to work together to do a specific job
Explanation:
The organ system can be defined as the collection of organs which perform a specific function in the body of the organism. The organs are interdependent on each other for performing a specific task in the body. Some of the vital functions in the body of the animal are digestion, excretion, and reproduction are dependent on the system of organs. The digestion of food involves the organs like mouth, esophagus, stomach, large and small intestine where physical and chemical digestion of food take place. The accessory organs like liver and pancreas secrete juices that are involved in digestion of food.
The three pieces of evidence that Alfred Wegener used to support his theory that the Earth's continents were once joined together as one large continent, called Pangaea, were:
-Pieces of fossil that were found in Africa and South America are very similar, almost identical, and it would have been difficult for them to stay in tact, if they had travelled via the current.
-The rock formations and the mountain chains that are found in both Africa and South America are very similar, once again, almost identical, and this is something that could have struggled to have occurred, if the earth didn't used to be one continent.
-The coastline of Africa and South America are very similar to that of a puzzle (they were when Wegener studied them, but they have changed due to erosion), and this helped him to confirm his theory.
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