Answer:
Scientists can use embryology to determine that many organisms have common ancestors.
Explanation:
I believe it's A. because the bone matrix is where it goes, therefore the bone matrix is already there. it just maintains it
A clam has a better chance
Answer:
My favorite organ system is the digestive system
Explanation:
I am beyond fascinated on how our body breaks down food and nutrients. The way our stomach acid works and things like the mucus lining is all so interesting. I just love the "journey" our food takes through our bodies. Its like a food roller coaster!
Biological classification is the process by which scientists group living organisms. Organisms are classified based on how similar they are. Historically, similarity was determined by examining the physical characteristics of an organism but modern classification uses a variety of techniques including genetic analysis.
Organisms are classified according to a system of seven ranks:
1. Kingdom
2. Phylum
3. Class
4. Order
5. Family
6. Genus
7. Species
For example, the honey bee (Apis mellifera) would be classified in the following way:
1. Kingdom = Animalia
2. Phylum = Arthropoda
3. Class = Insecta
4. Order = Hymenoptera
5. Family = Apidae
6. Genus = Apis
7. Species = Apis mellifera
Species names are always written including the Genus in either full or abbreviated, for example, Apis mellifera or A. mellifera respectively.