Answer: Errors that occur during DNA replication lead to mutations, which represent permanent, heritable changes in genetic material. These errors can pass from parent cell to daughter cells and affect many generations of cells.
Explanation:
The answer is : randomization was not used in sample selection. The major difference between experimental and quasi-experimental designs is lack of randomization in sampling selection.
<span>continue to divide even when they are tightly packed together.
Hope this helps(;</span>
Answer: different organisms have different chromosome numbers
Explanation: eukaryote cells have more than one chromosome
chromosomes are present in most cells all the time (not in erythrocytes), but cannot be visualised except during telophase of mitosis or meisosis
bacterial cells don’t have a nucleus
Answer:
<h2>b. It allows spinal nerves to exit the spinal cord. </h2>
Explanation:
- The vertebral column is an important characteristic of vertebrates.
- The formation of the vertebral column takes place from the notochord in the vertebrate.
- The vertebral column is also known as the spine or generally called the backbone.
- It forms the spinal canal that is responsible to provide protection to the spinal cord.
- The vertebral column is divided into many regions into human beings and some other organisms according to its function and position.
- It has many functions such as protection of the spinal cord, allow passes of spinal nerves and some other.
