The germinal period ends approximately two weeks after conception. <span> This </span>stage<span> occurs during the first 2 weeks of development (or the 2nd - 4th weeks of pregnancy). The union of the sperm and egg cell forms a single cell called a zygote. </span>
Answer:
A change in the anthropometric index across the distribution (5-95 percentile) resulted in a decrease in the E/I ratio of 0.032-0.037 and a decrease in the HRMax-Min of 1.56-2.39 beats/min.
20. The answer is 1 (Precambrian)
21. The answer is 4 (Pennsylvanian)
22. The answer is 2 (Bony Fishes, Dinosaurs, and Mammals)
23. The answer is 2 (Reptiles)
The uterus, specifically the Fallopian tube.