Between the atmosphere and hydrosphere
Answer:
A. Volcanic ash falls to the ground and adds minerals to the soil,
making it rich for plant growth.
Answer:
Question 1 : 1,3,2
Question 3: Not visible
Question 10: Disruptive Selection
Question 11: Animals have smaller ears to conserve body heat and plants have spines instead of leaves to reduce water loss.
Question 12: A trait that benefits an organism's ability to survive and reproduce
The answer is the second choice: variation, overpopulation, adaptation
In general, yes, the dorsal blood vessel of a worm be seen from the worm's exterior because a worm's "skin" is very thin. Although of course there are exceptions.
