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>
7000 chemicals. ..........
Answer:
Green house effects
Explanation:
This is when gases are trapped in the earth's atmosphere and make the earth warmer
Http://www.news-medical.net/health/What-Does-The-Pancreas-Do.aspx
i believe its A. hope this helps may i get a brainliest possibly