Maybe your hormones are acting up or puberty?
Answer:
having a family history of a certain disease
Explanation:
Answer:
your answer would be sinus node (also called the sinoatrial node, or SA node).
Explanation:
The tadpoles take their food from the yolk of an egg. The egg yolk is equivalent to the placenta. T<span>he </span>placenta <span>attaches itself to the uterus to provide the </span>developing<span> foetus with blood and oxygen.</span>