Question

Multiple choice question

1. The fluid part of blood is _
(¡) Serum (¡¡) Plasma (¡¡¡) Lymph

2. The mineral that initiates and maintains contraction of heart is __
(¡) Potassium (¡¡) Sodium
(¡¡¡) Sulphur ​

Answer 1

Answer:

1. the fluid part of a body is plasma
2. the mineral that eats and maintain contraction of heart is sodium

Explanation:

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Answer 2

Answer:

1.plasma

2.question is wrong magnesium initiates and maintain contractions of heart