Answer:
Calcium helps the growth of bones.
Explanation:
Answer:
.D. two daughter cells with twice the amount of DNA.
Mitosis is a multiplication division with the daughter cells having twice(diploid) the amount of DNA present in the parent cells that is 2n, The Chromosomes number doubles in the daughter cells , and therefore the DNA also doubles with each successful generation in the daughter cells. It is this ability to multiply the genetic components that makes Mitosis to be called multiplication division.
The parents and daughter cells are exactly similar.
Each daughter cell with its double genetic composition can also pass on to its own subsequent generation the genetic composition since its DNA and chromosomes . Thus enough amount can be passed to its own daughter cells too, which explains the need for double DNA inherited from the parents
Answer:
E. Both the assertion and the reason are incorrect.
Explanation:
Coral reefs are found in the tropical water which is poor in nutrients. The species of coral that form the reefs have symbiotic zooxanthellae in their tissues that can carry out the process of photosynthesis. The coral reefs obtain their food from their symbiont and hence, can survive in the water that lacks enough supply of nutrients.
Coral reefs also use their stinging tentacles and capture the small animals to feed on them. However, the food derived from symbiont zooxanthellae is the major source of nutrients for them.
Answer: Refers to the general temperature & pressure conditions that prevailed during metamorphisms. As the pressure & temperature increase, rocks undergo metamorphism at higher metamorphic grade.
Hope this helps.