Rawlings

If the ecosystem is a closed system, which of these things does not change as it cycles through the ecosystem? A. the location of matter B. the total amount of matter C. the form of matter D. all of these

22 Humpback whales mainly feed on krill, or shrimp-like crustaceans that live in the ocean. When humpback whales feed, they swim upwards with their mouths wide open and swallow thousands of krill all at once. The excess...

The process of photosynthesis converts carbon atoms from carbon dioxide into _______. A. oxygen B. sugars C. salts D. hydrogen

The diagram below represents part of the oxygen cycle. Which arrow, or series of arrows, represents the movement of atmospheric oxygen (O2) during respiration? A. only arrow 2 B. only arrow 6 C. only arrows 2 and 6 D. on...

Through the process of photosynthesis, light energy from the Sun was transformed into chemical energy in the form of sugar within a strawberry plant. The strawberries were then eaten by a bird, and the sugars were conver...