Final answer:
Bacteria do not produce offspring with genetic variation because they reproduce asexually through a process called binary fission, which creates identical copies of the original cell, unlike sexually reproducing organisms like humans, dogs, and trees.
Step-by-step explanation:
The organism that does not produce offspring with genetic variation is bacteria. Unlike humans, dogs, and trees, which reproduce sexually and combine genetic material from two parents to create genetically diverse offspring, bacteria reproduce asexually through a process called binary fission. In this process of asexual reproduction, a single bacterium replicates its DNA and divides into two identical cells, each a clone of the original with no genetic variation. It is important to note that while mutations can occur during the copying of DNA, which introduce some variability, the process itself does not mix genetic material to produce variety as sexual reproduction does.
Therefore, the answer to the question, 'which of the following types of organisms does not produce offspring with genetic variation?' is 'd) bacteria'.