Why is implantation in the endometrium critical for the embryo's survival?

The high temperature in rockport over the weekend was 55(1/4) °f. write this temperature value as a decimal number with two decimal places. the decimal form of °f is

The mental health technician was asked by the psychiatric nurse to monitor a biplor patient she took a phone call from the psychiatric. the patient began running down the hall and attempted to climb up to the window stating that she has magical powers and must get out to save her people. the mental health technician knows that this behavior can be recognized as

The 1.5 mile run test and the 12 minute swim test are considered as what kind of test ?