Biology, 19.03.2020 20:55 sotoamerica0814
Put these phases of the cardiac cycle in the correct order. 1. opening of the semilunar valves 2. isovolumic contraction 3. beginning of atrial systole 4. closure of the AV valves 5. completion of ventricular filling 6. beginning of ventricular systole 7. ventricular relaxation 8. ventricular ejection
Answers: 1
Biology, 21.06.2019 18:00
Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence
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Biology, 21.06.2019 20:30
This is a type pf behavior that animals are born with and them to survive
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Biology, 22.06.2019 06:20
(select all the correct choose each statement that is scientific. - the opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on earth. - the universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago. - ocean tides are caused by the uneven gravitational pulls of the moon and sun on different parts of earth. - human life is more valuable than other forms of life on earth because humans are more intelligent than other organisms.
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Biology, 22.06.2019 07:00
Which best describes the scientific method? a. a path of clearly defined steps that must be followed in a particular order b. a possible answer to a scientific question based on knowledge or research c. the recipe for how to conduct an experiment that must be followed precisely d. the process of hypothesis and testing through which scientific inquiry occurs
Answers: 1
Put these phases of the cardiac cycle in the correct order. 1. opening of the semilunar valves 2. is...
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