Question

1. What is the significance of childhood in humans?

a. Childhood is a crucial time for learning math, language, and history so you can get a job in adulthood.

b. Human brains are costly, so the extra time is required for maturation to make the most of the investment. It is when we learn from our fellow humans.

c. Our brains are not big enough, so childhood is required for them to adapt to the environment.

d. All of the above.

2. In a November 21, 2006 Current Biology report, Martin Muller and his colleagues describe the mating patterns of common chimpanzees in Uganda's Kibale National Park. Male chimps generally prefer to mate with females who are 30 years of age or older. These older females are also more often fought over by males. Even balding 55 year old females with worn and broken teeth apparently are more appealing to males than are young healthy females, aged 15-20.

What does Muller speculate is the reason for male chimpanzees choosing the older females as mates instead of the younger females?

a. Muller speculates that chimpanzee males are developing a sexual preference for older females.

b. Muller speculates that the appeal of older females is that they have more sexual experience, and are therefore more pleasurable partners.

c. Muller speculates that the appeal of older females is that they have been successful in surviving and in having and raising offspring.

d. None of the above are true about the results of this study.

3. What is sexual dimorphism in primates?

a. The anatomical differences between males and females of different species.

b. The anatomical differences between males and females of the same species.

c. The behavioral differences between males and females of different species.

d. The behavioral differences between males and females of the same species.

Answer 1

1. Our brains are not big enough, so childhood is required for them to adapt to the environment.

Childhood is crucial. So as to adapt to the environment we need time. Other than animals humans take time to walk and study. We need time to adjust.

2. Muller speculates that chimpanzee males are developing a sexual preference for older females.

In the study he tells about it. Eventhough there are healthy females chimpanzees go for older women to mate.

3. The anatomical differences between males and females of the same species.

Other than difference in sex organs there exists other anatomical difference between males and females of a same species.