Answer:
The correct answer is D. Umbilical cord
Explanation:
The umbilical cord connects the fetus to the placenta and through it exchanges nutritional substances as well as oxygen-rich blood. The umbilical cord is maintained throughout gestation until the moment of birth, when it is cut and leaves a permanent scar, the navel. The umbilical cord is responsible for breathing and feeding the fetus until the moment it is born, so any failure or blockage in the circulation of oxygen and nutrients through the cord can lead to injury or even death of the embryo. It also serves to remove waste and carbon dioxide (CO2).
Answer:
Walk, bike, or take public transport whenever possible. If you don't own and drive a car on average you can reduce your total ecological footprint by as much as 20 per cent. Using it less will reduce your footprint, helps to avoid traffic jam and keeps your cities air cleaner.
its more than 2 but i hope i helped.
There are a couple reasons the ice is important to polar bears, but given the choices you have the correct one would be:
A. The polar bears can’t out swim the seals, so they sit quietly on an ice platform and attack the seals when they come up for air.
<u>BINARY FISSION</u> describes a process when a bacterial cell divides to produce a new cell.
Answer:
Due to there being more kelp, more crabs will survive and this will increase the crab population.
Explanation:
