Ever since he took on his part-time job late in the evenings, Markus can't shake this cough. He has an appointment to see the do
ctor early this morning before school for advice about how to get healthy again. What is the doctor most likely to tell Markus? Get more sleep to improve your immune system
Get less sleep but improve your muscle strength
Exercise intensely to determine your limits
Overeat for a short period to shift the illness
Answer: Before about week 8 of pregnancy, a doctor may refer to the fetus as an embryo. The heart of an embryo starts to beat from around 5–6 weeks of pregnancy. Also, it may be possible to see the first visible sign of the embryo, known as the fetal pole, at this stage.
