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.
30. Sex cells are always haploid, meaning they have half the number of chromosomes.
<span>The answer is A) DNA.
The genetic information of the cell is packed within a nucleus. Unlike other organelles of the cell, chloroplasts and mitochondria have their own genetic information as well in the form of DNA. Mitochondrial DNA is circular in most of the organisms, only some protists, fungi and plants have linear mitochondrial DNA. It contains genes that code for transport RNA, ribosomal subunits, and for other proteins necessary for mitochondrial function. Chloroplast DNA has branched linear form. Chloroplast genes mostly code for proteins involved in photosynthesis.</span>
Answer:
The correct answer is- Resource partitioning
Explanation:
According to the competitive exclusion principle, two species can not share the same niche because species that share the same niche have the same needs which leads to the interspecies competition.
This competition leads to resource partitioning which means the species who share the same niche evolved by natural selection to occupy different niche by dividing their resource which leads to the coexistence of two different species.
So here coexistence of wild cats differ in the size of their canine teeth is the result of resource partitioning.
Answer: B. Carmen refuses again and again to clean her room. Obstinate means to <u>refuse</u> to change your opinion, and REFUSING to clean your room seems to fit that description, keyword being refuse.
