Answer:
Answer is B.
Explanation:
The mitochondrial DNA is found in most eukaryotes mitochondrial, and it is an extranuclear double stranded DNA. It is known to be maternally inherited.
It produces adenosine triphosphate, ATP, which is useful to the cells, through the conversion of chemical energy in the food.
It was discovered that, there are about 2 to 10 copies of the mitochondrial DNA genome in each of the mitochondrion.
Answer: Sexual reproduction is advantageous over asexual reproduction because it reduces the rate of mutation accumulation.
New Zealand mud snails reproduce through asexual and sexual modes of reproduction. Asexual reproduction allows these organisms to reproduce more number of offsprings. Asexual reproduction advantageous as these organisms faces natural disaster conditions like tide, drought results in the decrease in the population. Therefore, does not get mate to undergo sexual reproduction. Sexual reproduction in these snails results in genetic variation in offsprings. Sexual reproduction results in increase in mutation rate in the genetic material being passed to offsprings because of resorting of genetic material being distributed from parent to offspring. This will result in genetic variations. Hence, parent will be different from offsprings. In asexual reproduction offsprings are the clones of parents as there is no resorting of genetic material takes place.
Answer:
true
Explanation:
Sediment is deposited in flat, horizontal layers with the oldest layers on the bottom and the younger layers laying on and over the older layers.
Answer:
Carbon cycle may be defined as a type of biogeochemical cycle that regulates the amount of carbon in nature. The carbon is released by the living animals and utilized by the plants in form of carbon dioxide.
Photosynthesis consumes the carbon dioxide to make carbohydrates where as cellular respiration releases carbon dioxide and breakdown the carbohydrate. Both these process helps in recycling of the carbon in nature and maintains the level of carbon in nature.
