Let us take the instance of humans and chimpanzees. chimpanzees are able to express a wide range of emotions - such as busting out in laughter or smiling - this trait was once thought to be a feature exclusive to humans. The smile can be linked to the activation of the brain’s limbic system - where the orbicularis oculi muscle involuntarily contracts and raises the cheeks, forming wrinkles around the eyes. This implies that the smile is a true and genuine smile. Interestingly, this type of reflex has a name - the Duchenne smile. Moreover, research has shown that chimpanzees share 98.6% of our DNA - This means that humans and chimpanzees shared a common ancestor eons ago. It is important to also note that chimpanzees are the closest living relatives to humans.
Answered by Vishal kumar | 1 year agoOnly variations that confer an advantage to an individual organism will survive in a population. Do you agree with this statement? Why or why not?
How is the equal genetic contribution of male and female parents ensured in the progeny?
Explain how sexual reproduction gives rise to more viable variations than asexual reproduction. How does this affect the evolution of those organisms that reproduce sexually?
What evidence do we have for the origin of life from inanimate matter?
Explain the importance of fossils in deciding evolutionary relationships.