All chordates. a notochord is present at some point in all chordates but sometimes is lost or becomes another structure, like vertebrae
Also idk what “Tregon” so hopefully that didn’t stray from my answer being right
Answer:
B) 10% of the energy goes to the next level of the energy
Explanation:
The 10% Rule means that when energy is passed in an ecosystem from one trophic level to the next, only *ten percent* of the energy will be passed on.
Answer: Well really the digestive, respiratory and circulatory systems all work together to make cellular respiration possible so i guess you could choose a or b
Explanation:
Answer: Snails will become extinct.
Considering the sea gull feeds on snails leaving the shells anywhere, it would not be surprising that in the coming years to come, the species of snails will dwindle. Based on the digits given, if such scenario continues to happen, we will eventually lose our snails.