Answer:
B. When Alfred Wegener propose the idea of continental drift
Explanation:
The first true explanation came from Alfred Wegener, who proposed the Plate Tectonic Theory. This theory stated, in a nutshell, that the continents different pieces that collided together at faults.
Technically, explorers found out this way back. If you consider this the answer choice, then C is your best answer.
<span>monosomy 1 is bad because your missing a chromosome</span>
The answer is increased mutation rate.
Reproductive isolation is the existence of biological factors that impede members of two species from interbreeding and producing viable fertile offspring. These biological barriers may be pre-zygotic or post zygotic; post zygotic barriers include developmental errors of embryo, become infertile, or not living long enough to reproduce; while the prezygotic barriers include; habitat isolation, temporal isolation, genetic barriers among others.
Simple version:
6 levels of environmental organization
individual
population
community
ecosystem
biome
biosphere
complicated version:
Exploring levels of biological organization
Biosphere
Ecosystem
community
population
organism
organs
tissues
cell
organelles
molecules
Considering the enviormental impacts of an expierment is using ethics
