Ans.
In a evolutionary or phylogenetic tree, the nodes represent common ancestral species of the descendants, which are represented by the tips of branches, arising from the nodes.
According to the given evolutionary tree, all organisms are evolved from a common ancestor, represented by the last node, which was present about 13 million years ago. Hence, the option 1). is correct.
The second last node is showing a common ancestor to gorilla, chimpanzee, bonobo, and human, which was evolved to different species about 6 million years ago. Hence, the option 3). is correct.
Thus, the correct options are 'option (1). and option (2).'
Answer:
organic chemistry is the study of molecules that contain Carbon compounds. inorganic chemistry is the study of all compound that does not contain Carbon compounds
Answer:
the answer might be A as eco means environment
A three-carbon alkene contains two double bonds.
My prediction of its molecular formula is A "C3H4".
Eukaryotic and Prokaryotic cells
