Answer:
B) Valves closing
Explanation:
A healthy heart makes a lub-dub sound with each beat. This sound comes from the valves shutting on the blood inside the heart. The first sound (the lub) happens when the mitral and tricuspid valves close.
I’m guessing the answer is 4
My best guess would be A
Please put me as a Brainlier
Answer:
vegetables and legumes/beans.
fruit.
lean meats and poultry, fish, eggs, tofu, nuts and seeds, legumes/beans.
grain (cereal) foods, mostly wholegrain and/or high cereal fibre varieties.
milk, yoghurt, cheese and/or alternatives, mostly reduced fat.
Explanation:
