The skin cells of a scorpion organize together to make a hard covering called a carapace, which protect the scorpion. what is the term for a group of similar cells working together?

The term is tissue.

A tissue in biology is the intermediate level of organization between the cell and the organ. A tissue is a set of similar cells of the same origin, grouped in clusters, network or beam (fiber). A fabric forms a functional whole, that is to say that its cells contribute to the same function. Biological tissues regenerate regularly and are assembled together to form organs.

The science that studies the tissues is histology.

1: A karyotype is created and used to identify possible chromosomal defects.

Explanation:

A karyotype is the observed characteristics (number, type, shape, position etc.) of the chromosomes of an individual or species within the nucleus of the cell (mainly eukaryotic). Karyotype tests are performed to show if an individual’s chromosomes are normal or not. The chromosomes (especially those in the white blood cells) are usually isolated, stained, and examined under the microscope. This detect if there is an abnormal chromosome, an extra chromosome or an incomplete chromosome. A karyotype can be used as a scientific report because possible chromosomal defects such as Down syndrome (trisomy 21), Klinefelter syndrome, Edwards syndrome and Turner syndrome can be identified using the Karyotype tests.