Answer:
a
Explanation:
Evolution is supposed to take place over a long period of time and is made up of small changes
They both are mechanisms by which new species arise.
Hope this helps! ;)
Answer:
Decayed organic matter provides nutrients to other organisms
Explanation:
Answer:
Threonine has two chiral centers.
The correct options are c. carbon b and d. carbon c
Explanation:
Chiral centers are those that have four different groups of atoms bonded to it. Carbon a has three atoms of hydrogen attached to it so it can't be a chiral carbon. It isn't the carboxyl carbon either since it is double bonded to oxygen. And the amino nitrogen does not qualify anyway because it is bonded to three different groups of atoms, not four.
