6. Which would be expected to have a teratogenic effect? A) alcohol consumptiosn
ID: 129161 • Letter: 6
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6. Which would be expected to have a teratogenic effect? A) alcohol consumptiosn B) tobacco inhalation C) exposure to x-rays D) All the answers are correct 7. Which reflex appears to have survival value for the newborn infant and involves the infant turning its head when its cheek is touched. A) the grasping reflex B) the Babinski reflex C) the startle reflex D) the rooting reflex 8. A newborn baby turns his toes upward when his mother touches the bottom of his feet This is an example of which of the following? A) Babinski reflex B) curling reflex C) grasping reflex D) rooting reflex 9. At birth, which sense is the LEAST developed sense? A) hearing B) vision C) smell D) touch Language acquisition seems to be the same across cultures with very different languages, supporting the role ofin language development. Without exposure to human speech, a child cannot develop normal speech, supporting the role of in language development A) nature; nature B) nurture; nature C) nature; nurture D) nurture; nurture 10.Explanation / Answer
1. Correct option is D) All the options are correct.
Tertatogenic are a class of agents that have adverse effect on the development of fetus during pregnancy.Both tobacco and alcohol are known teratogens.Ionizing radiation including xrays and gamma rays can lead to in-utero exposure, having teratogenic effects.
2. Correct option is D) rooting reflex
It is an innate tendency of the infant to turn towards the stimulus when its lip or cheeks are touched.They turn and make sucking motions, it is important for infants as they depend on breastfeeding for nutrition.
3.correct option is A) The Barbinski reflex is normal reflex present in children upto 2 years, beyond which it may indicate a probem in the nervous system.When the bottom of a newborn's feet are touched, the big toe moves upwards and other toes fan out.
4 Correct answer is B) vision
Smell followed by touch are the most developed senses at birth.Hearing is the next to develop and develops during the first month.Sense of sight is the least developed during birth.Newborns see the world around them as very hazy.
5.Option C) nature; nurture
Language Acquisition in all cultures takes place during the same age period, thus indicating role of nature.However it has been seen through studying of feral children that human contact is necessary for language to develop, indicating thevrole of nurture .
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