Answer:
An introduced species is a non native species that has one way or another been integrated into the native environment by human or other means. The key difference with introduced species are that they integrate into the native environment without negative effects to the surrounding ecosystem.
Explanation:
Answer: 1) The travels of Marco Polo
2) Columbus reaches the Western Hemisphere
3) Captain Cook maps Newfoundland
4)First photos of the Earth from space
Explanation:
Marco Polo was in the 13th century
Christopher was in the 15th century
Captain Cook was in the 18th Century
And the Photos from earth were from the 20th Century
Answer:
Probably an animal cell because the cells are more rounded.
Explanation:
Answer:
1- with every big bang...
2- The big bang really happened..
3- With every big bang there comes a big crunch...
4- A tiny, dense, very hot fireball...
Explanation:
According to the principle of common descent, all species--living and extinct--are descended from ancient common ancestors. This is <span>Darwin's mechanism for evolution which suggest about living and extinct species. </span>