7. C
8. B
9. B
Hope this helps!
A. everyone is influenced by them negatively.
Start with your producers, or plants (grasses, flowers, etc.). Then your 1st level consumers (herbivores), like grasshoppers, mice, etc. Then your second level producers (carnivores and omnivores) that eat the herbivores (like birds). And keep going, knowing each of the levels get eaten by each other. 10% of energy is transferred in each level. An example might be...
Grass > Mice > Hawk > Vulture
Answer:
Fear is a natural emotion that protects people from harm when they face real and imminent danger. A phobia is an excessive fear or anxiety related to specific objects or situations that are out of proportion to the actual danger they present.
36/3s is the answer cause 18x3 is 36 and it is 3 seconds so 36m/3s