Answer:
Correct option is (B). Nyctalopia affects vision in the fovea centralis, resulting in impaired vision.
Explanation:
Nyctalopia which is also known as night blindness, in this condition it's difficult to see in relatively low light. It can cause by two types one is from birth, and another is injury or vitamin A deficiency which is also called as malnutrition.
It is caused by the loss of normal rod function in retina, and loss their ability to response in the light. The outer part of retina is made up of more rods compare to cones, loss of peripheral area repeatedly results in night blindness.
Between the Tropic of Cancer and Capricorn is the equator , which is one of the hottest places on Earth. I hope this helps you!
Answer:
Consistently changes the subject when the topic of the fetus/newborn is raised.
Explanation:
This is the decision of the couple whether they want a child or not and can discuss about the family planning as well. Different psychological aspects acn explain this matter.
The expectant father is not mentally prepared for the child. He might refuse the talks and stay away from the communication that are related to the new born child. This must be properly assessed and important to understand the feeling of the expectant father.
Thus, the answer is consistently changes the subject when the topic of the fetus/newborn is raised.
Answer:
The correct answer would be an option B.
Asexual reproduction is a reproduction in which offspring are produced from a single parent.
It does not involve fusion of gametes and crossing over due to which the offspring contain identical genome as that of parents.
This reduces the genetic diversity in a population due to which all the organisms of a population are at equal risk of extinction under unfavorable conditions such as high temperature, antibiotics, change in pH of surrounding medium et cetera.
Thus, the disadvantage of asexual reproduction is the lack of genetic diversity due to which a single antibiotic is able to kill millions of genetically identical bacteria.
