The correct answer is letter B. A notochord is what separates chordates from other species. It is described as a c<span>artilaginous skeletal rod that supports that body of chordate animals. This particular body part is very much visible in different kinds of fish.</span>
Answer;
10 seconds
The maximum interval for pausing chest compressions is 10 seconds.
Explanation;
Compressions should be done at a rate of 100 to 120 compressions per minute at a depth of about 1.5 inches for infants, about 2 inches for children and at least 2 inches but no greater than 2.4 inches for adolescents.
The maximum interval for pausing chest compressions is 10 seconds.
Because it takes millions of years to erode
It should be due to the changes in the water temperature and the salinity of the water.
Answer:
1. A. digestive system
B. excretory system
2. A. nervous system
B. respiratory system
Explanation:
1. the digestive system helps digest food and the excretory system helps get rid of waste.
2. asthma is considered a respiratory disease.
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