I just had this answer but it hasn't been graded. I put 1. Meteor impacts, 2. volcanic gases and 5. Milankovitch cycles. I didn't put earthquakes because I wouldn't think it would affect the climate changing since they just affect ground movement.
If the prey population is thriving, then the predator population will as well- or at least, until they eat out that population, then the prey and the predators will be at a decline. It's a balance.
Answer:
Rune Elmqvist is designated with the credits of establishing the first artificial cardiac pacemaker.
Explanation:
1. tympanic
2.inner ear
3. Hammer (malleus),Anvil (incus) and Stirrup (stapes)
4. Hammer (malleus)
5. Pinna or auricle.
6. cerumen
7. stapedius
8. bony labyrinth
9. The Eustachian tube
10.the tiny stapes bone
