The Cambrian Period marks an important point in the history of life on Earth; it is the time when most of the major groups of animals first appear in the fossil record. This event is sometimes called the "Cambrian Explosion," because of the relatively short time over which this diversity of forms appears
<span>4 molecules of oxygen. Haemoglobin is a protein found in the red blood cells, which carries oxygen to the cells to perform cellular respiration. Each red blood cell carries around 250 million haemoglobin. So the entire capacity of an RBC is around 1 billion oxygen molecules.</span>
The greatest cause of the worldwide loss of species is human activity. I think
Answer:
Insecta
Explanation:
The classification levels are the following from broadest to the most specific:
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
In your selection it is listed in that order:
Domain --- Eukarya
Kingdom --- Animalia
Phylum --- Arthropoda
Class --- Insecta
Order --- Hymenoptera
Family --- Apidae
Genus --- Apis
Species --- Mellifera
When you name the organism, we use the two name or binary naming system, getting the genus and the species. So the scientific name of the honey bee is: Apis mellifera
