Answer:
to area of high concentration to form a solution.
Answer:
c
Explanation:
it is the answer
mark me as brainliest pls
The prenatal circulation of blood is different than the postnatal circulation, mainly because the lungs are not in use. The fetus obtains oxygen and nutrients from the mother through the placenta and the umbilical cord. Blood from the placenta is carried to the fetus by the umbilical vein.
Answer:
d. A smaller body size
Explanation:
The smaller a body size is the larger the body surface area is. Larger body surface area would allow for increase in lost of more excess heat to the environment.
Therefore, hypothetically, one of the obvious adaptation that would be evolved by the rat population that was moved from their previous cold northern tundra climate to a desert environment is a smaller body size. This would enable them in cooling off and preventing over-heating.
