Hey. The first sound is the "lub." This is what you hear once the mitral and tricuspid valves of the heart close, which are the valves between the atria and the ventricles! Super cool. It is your third answer choice.
Answer:
1) True
2 true
3 false
4 false
5 true
6
7 algae
8 energy
9 bottom
10 less
Explanation:
I'm not sure FROM number 6 to 10
They are cold blooded
They respire both by Skin and lungs.
They lay eggs in water ; they have a 3 chambered heart.
D. Secondary online and layers of periderm
Answer:
<em>Asthma and COPD are both chronic lung diseases. COPD is mainly due to damage caused by smoking, while asthma is due to an inflammatory reaction. COPD is a progressive disease, while allergic reactions of asthma can be reversible.</em><em>With asthma, the swelling is often triggered by something you're allergic to, like pollen or mold, or by physical activity. COPD is the name given to a group of lung diseases that include emphysema and chronic bronchitis. Emphysema happens when the tiny sacs in your lungs (called alveoli) are damaged</em><em>.</em>
Explanation:
<em><u>MARK ME AS A BRAINLIST PLZ</u></em>