Question 11 (1.42 points) Evolutionary biologists believe...

Question 11 (1.42 points) Evolutionary biologists believe that the larger brains of early Homo sapiens babies meant that babies were born less mature than those born to earlier hominins, resulting in __________. a greater likelihood of death at birth a longer time before the rest of the body could support the head in infancy a longer period of dependency of infants on their parents a great likelihood that a baby's head would get stuck in the pelvic opening Question 12 (1.42 points) What term is used to refer to people in the rural areas of developed or developing countries, who tend to adhere more closely to the historical aspects of their culture than do people in urban areas? agrarian cultures conventional cultures traditional cultures rural cultures

Transcript

00:02 Hello students, let us solve this question.

00:03 So, this question actually is an mcq type of question.

00:08 It is number, there's 11 because we have two mcqs in this slide.

00:13 And the question here is that evolutionary biologists, they believe, evolutionary biologists, they believe that early homo sapiens, that is humans, their babies had larger brains, meant that the babies were less mature compared to earlier hominins resulting in dash.

00:36 So hominins basically early species of humans.

00:44 So we have four different options to choose from here.

00:50 So because in this question it is asking us that because the early homo sapiens, their babies, they had larger brains due to which they were.

01:02 Less mature compared to the human species that came before them and their babies.

01:08 So that resulted in what? so we have to choose from the four different options that we have.

01:16 The first option is that greater likelihood of death, greater likelihood of death at the time of birth.

01:34 So we can write at birth.

01:41 Second option that we have is longer time, longer time before body would support the head, meaning it would take more time for the babies to adjust to their size of the head because brain is larger.

02:17 So head is going to be larger.

02:19 The next option is longer, longer period of infant dependency on parents.

02:46 Last option is greater likelihood of baby's head.

03:08 Getting in the pelvic opening of the mother, in the pelvic opening.

03:23 So now, to answer this question, we have to see that in the question it has been given that the babies were less mature.

03:31 And if the babies are less mature compared to the early hominings, then it would mean that the parents will have to take care of the baby for longer.

03:48 Duration.

03:49 It was also noticed by the evolutionary biologist that larger the size of the head of the baby, longer period of parental dependency, meaning higher will be the period of parental dependency of the baby on the parents.

04:06 So the correct option is resulting in longer period of infant dependency on parents.

04:13 Now if you look at the other option, so, even though larger head could relate to a greater likelihood of death, but there was no clear evidence to support this.

04:28 Also, longer time before, the body can support or would support the head.

04:34 This was also one of the possibilities, but even though the brain was larger, it was not as large that the body will not be able to completely support the head...

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