In the early 1800s, darwin studied 13 kinds of finches. what did darwin hypothesize about these birds?

a. the different finches could breed and produce fertile offspring.

b. the finches were different species that shared a common ancestor.

c. their speciation took millions of years.

d. all 13 kinds of finches belonged to the same species.

Option B, The finches were different species that shared a common ancestor.

Explanation:

While conducting his study on the Galapagos Islands, Charles Darwin found that the different species of finches has some common ancestry link based on which he later proposed theory of natural selection

Darwin researched on finches as these are considered as fastest-evolving vertebrates and thus variation with the same species can also be noticed.

One such variation can be observed in the size and form of beak in finches that greatly differs from each other but the gene that is responsible for gene is coming from a common ancestor.

Hence, option B is correct.

a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.

the answer to your question is sperm