Activity An ectopic pregnancy occurs when a fertilized egg implants into a structure other than the uterine lining. Use these models to answer the following questions.

Part A
In the initial days of pregnancy, a woman often feels no symptoms at all. Women with ectopic pregnancies often experience severe pain in the lower abdomen. They may experience digestive discomfort. Use the model to explain why these symptoms occur.

Aflame cell is at the end of each tubule of the nephridium malpighian tubules kidneys none of the above

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time

Which nucleotide component contains nitrogen