Answer:
6 days
Explanation:
once the embryo reaches the Blastocyst stage, approximately 5-6 days after fertilization, it hatches out of it's zona pellucida and begins the process of implantation in the uterus.
Answer:
A. Blood is responsible for helping us digest food.
Explanation:
First off, imagine what that'd be like if you get a cut and your blood had digested food in it. Gross. But seriously, the other three options are true facts. What does help us to digest food, is bacteria, and other parts of the digestive system.
Something to remember is that blood has to do with cells like red blood cells and white blood cells for instance. There is both oxygen-rich and oxygen-poor blood which all goes on around the lungs.
Hope that helps and have a great day!
The muscles you can’t control are Cardiac
I believe the answer is B or improper diet because certain foods that you eat such as junk food can upset your stomach which causes heat cramps
