Artifact selections benefits humans by helping us learn what had happened in the past.
Answer: climate, temperature, animals, plants, precipitation, sunlight, etc.
Explanation:
Answer:
Explanation:
The correct pairing of the homologous chromosomes and their correct segregation (a chromosome for each daughter cell) are key to the proper development of the new cells, and specially of the new individual if we are talking about the early stages of embryogenesis. If there is an error during the splitting of chromosomes, and one cell gets a double set and the other misses a chromosome, numerical chromosomal abnormalities occur. These numerical abnormalities can happen on autosomes or sexual chromosomes, and common examples are as Down Syndrome (trisomy 21), Patau Syndrome (trisomy 13), Turner Syndrome (45,X) and others.
The number of the trisomy indicates the chromosome pair that suffered the adding or the subtraction of its chromosome.
A mineral is a naturally occurring inorganic solid that has a fix chemical composition.
Another naturally occurring solid substance is Rocks.
Rocks are different from the Minerals as they are composed of several minerals and have different proportion of chemical compounds present in them along with some organic components also.
Explanation:
- Minerals have a fix chemical composition and are classified as metallic minerals, non metallic minerals and mineral fuels.
- Minerals are of immense use as they are the source from which pure elements can be obtained.
- Some examples of common minerals are Magnetite an ore of irone, Bauxite an ore of aluminium, Limestone, coal an example of mineral fuel.