Integrate Information: Which two ideas of Lamarck contributed the most to Darwin’s theory of evolution?

Jean Baptiste Lamarck (1744-1829) is one of the best-known early evolutionists. Unlike Darwin, Lamarck believed that living things evolved in a continuously upward direction, from dead matter, through simple to more complex forms, toward human "perfection." Species didn't die out in extinctions, Lamarck claimed.

Explanation:

for a different answer set the answer would be because the oxygen in the water had depleted (apex)