Which of the following is most important to the heartbeat?
a. aortic valve
b. sinoatr...
![subject](/tpl/images/cats/biologiya.png)
Biology, 25.08.2019 10:00 lucerogon7403
Which of the following is most important to the heartbeat?
a. aortic valve
b. sinoatrial node
c. lymph node
d. tricuspid valve
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 01:00
An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 01:00
Why would a drug the damages capsids treat a viral infection
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 16:00
Which of the following is a true statements about viruses? viruses have no nucleus. viruses are alive. viruses have a cell membrane. all viruses are deadly.
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 18:20
Astudent measured the amount of carbon dioxide (co2) produced by yeast during an experiment. use the data in the table at the right to answer the questions below. which variable is the dependent variable?
Answers: 3
You know the right answer?
Questions
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.10.2020 16:01
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.10.2020 16:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/es.png)
Spanish, 18.10.2020 16:01
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.10.2020 16:01
![question](/tpl/images/cats/istoriya.png)
History, 18.10.2020 16:01
![question](/tpl/images/cats/mat.png)
Mathematics, 18.10.2020 16:01
![question](/tpl/images/cats/mat.png)
Mathematics, 18.10.2020 16:01
![question](/tpl/images/cats/mat.png)
Mathematics, 18.10.2020 16:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mkx.png)
Arts, 18.10.2020 16:01
![question](/tpl/images/cats/istoriya.png)
History, 18.10.2020 16:01
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.10.2020 16:01