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.
Answer:
Central Nervous System.
Explanation:
The neurons travel into the spinal cord via the dorsal roots. Dorsal roots and ventral roots come together and exit the intervertebral foramina as they become spinal nerves.
Answer:
Where are the answer choices
B . Push blood from the vertices to the arteries , and ventricles push blood from the veins to the atria
Answer:
smack him
Explanation:
tell him to take it off then see were it goes yell my man
