Answer: The blood vessels in the umbilical cord, the fetus receives all the necessary nutrition, oxygen, and life support from the mother through the placenta.
Explanation:
I still wish I could help but I'm in 6th grade
TMV is not an additional hazard for smokers because the humans are not within the range of hosts of the TMV virus and so the humans cannot be infected. The Tobacco Mosaic Virus is actually a single stranded RNA virus that infects a wide variety of plants and especially the tobacco plants. The main signal is the discoloration of the leaves of the plants.
The correct answer is Individual.
Species is the basic unit of macroevolution.
We can term macroevolution as a large-scale change at the species level which results in the formation of new species.
