Answer:
B. They are among the most productive types of ecosystems.
Explanation:
The estuaries provide migratory birds a place to rest. for example.
<span>A symbiotic relationship in which one organism lives inside the other and both organisms benefit is the correct answer </span>
Answer:
lava flows are very hot, thin and runny. When it cools is has a smooth to ropey texture because of the low silica content which makes it cool quickly. Pahoehoe flows creep along generally at less than 3 feet per minute but some flows have been measured at over 20 miles per hour.
Explanation:
it is A
The presence of crinoid fossils in Indiana provides evidence that populations have changed over time.