Should be A. Species have changed over time.
Answer:
Destructive interference happens when one wave is oscillating the opposite way as the other one, so it compensates.
Explanation:
Pathogens can exist in blood and then can be passed the transfusions
Answer:
The true statement is: "Spring tides are the highest, while neap tides are the lowest."
Explanation:
- The range of difference in the level of water between high and low tide is always larger in spring tide.
- Neap tides are the moderate tides. It does not have huge difference in higher and low tides because the bulging of the ocean ( by the sun) balances the bulge of the ocean caused by the moon.
- This balance is not found in spring tides that is the main reason for spring tides to have the highest level for both higher and lower tides.