What is being moved in both mitosis and meiosis? why do we have to have mitosis and meiosis?

1. The right answer is chromosomes.

The purpose of cell division (mitosis or meiosis) is to obtain identical or non-identical cells with genetic material. That is why during the division there is a reworking of the chromosomes (carrier of the genetic information) which will distribute the chromosomes equitably on the two daughter cells. if the distribution is not equitable, it leads to genetic diseases such as trisomy 21.

2. Importance of mitosis and meiosis:

Mitosis is a crucial step in the cancer process. Mitosis is the cell division that allows an equal distribution of genetic information from an initial mother cell to two daughter cells while retaining the karyotype over the cell generations.

Meiosis is a cell division that, alternately with fertilization, plays a key role in sexual reproduction, reducing the number of chromosomes in gametes by half, thereby preserving the number of chromosomes of the species after fertilization.

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.