mckenziet8930
17.05.2021 •
Biology
Normal heart sounds are known as 'lub' and 'dub.' These sounds can be heart with a stethoscope as blood flows through the heart. According to the model of the heart sound cycle, what most likely causes the sound known as 'lub'? A) The 'lub' sound is caused as the atrioventricular valves close. B) The 'lub' sound is caused as the atrioventricular valves open. C) The 'lub' sound is caused as the semilunar valves close. D) The 'lub' sound is caused as the semilunar valves open
Solved
Show answers
More tips
- C Computers and Internet Отправляем смс через интернет: легко и просто...
- L Leisure and Entertainment The Best Film of 2010: A Look Back at the Academy Awards...
- H Health and Medicine Simple and Effective: How to Get Rid of Cracked Heels...
- L Leisure and Entertainment What to Bring on a Hike? Essential Items to Pack for a Safe and Enjoyable Adventure...
- L Leisure and Entertainment Couchsurfing: A New Way to Travel...
- S Style and Beauty Autotanning: Harmful or Safe?...
- F Food and Cooking 10 Ideas for a Wedding Anniversary Gift...
- H Health and Medicine How to Reduce Sweating in the Heat and Beyond: Say Goodbye to Excessive Sweat...
- F Food and Cooking Do Aphrodisiacs Really Work? Separating Fact from Fiction...
- H Health and Medicine What to Eat to Lose Weight?...
Answers on questions: Biology
- B Biology There are environmental benefits to using the aquaculture practice. It can improve sediment quality, water clarity and help control harmful algae blooms. Which aquatic...
- B Biology Hazards to humans that come into contact with it, 4. Study the graphs in the stimulus. Order the events that occurred at the Bodega Bay study site, where scientists used...
- B Biology Researchers investigate the transport of a certain protein into cells by endocytosis. In an experiment, the researchers incubate the cells in the presence of the protein...
- B Biology Ecologists are interested in quantifying different kinds of biodiversity. In each of the two studies outlined here, which kind of biodiversity are ecologists studying?...
- B Biology What is Archimedes principles ???5...
- B Biology Which statement best explains why each river has its own set of characteristics a river supports different organisms depending on where it flows be a river absorbs oxygen...
- B Biology Why does passive immunity for a new-born only lasts for a short time?...
- B Biology Complete the table below by naming the blood vessels and sketching their function. Your Sketch may be a symbol, as shown here. OMG PLS PLS PLS HELP...
- B Biology Please help!! Do both questions pleas Which organelle electively permeable membrane to control movement in or out of the nucleus? A. Cell membrane B. Centromeres C. Cell...
- B Biology What might cause an ecosystem not to return to its original climax community after a disturbance...
Ответ:
A) The 'lub' sound is caused as the atrioventricular valves close.
Explanation:
USATestprep just answered it
Ответ:
The answer is A.
Explanation:
Because they evolved to release oxygen through photosynthesis.