Answer:
Mass extinction is when biodiversity or species in a living habitat decreases to about three-fourths of its original number or to none. Such an event is identified by a sharp change in the diversity and abundance of multicellular organisms. It occurs when the rate of extinction increases with respect to the rate of speciation. Mass extinctions are usually associated with organisms that are macroscopic rather than microscopic. Examples of mass extinctions are Permian extinction of marine species, and Cretaceous extinction of various species, including dinosaurs.
A sequence of three nitrogen bases is called a codon, and each codon codes for a specific amino acid. If a base is deleted, as is the case in a mutation called deletion, the order of the nitorgenous bases will be disturbed and the entire protein molecule being coded for will be changed.
True: <span>DNA is the shortened form of the term ‘Deoxyribonucleic acid’
Deoxyribonucleic corrosive is a string like chain of nucleotides conveying the hereditary guidelines utilized as a part of the development, improvement, working and propagation of all known living beings and numerous infections
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Answer:
The annelids are tradionally called segmented worms because of the elongated bodies, divided in multiple segments.
Plants began to appear around 470 million years ago. Dinosaurs became extinct about 65 million years ago, so thats not a choice. Prokaryotes first appeared on Earth almost 2 billion years ago, so thats not a choice either. Age of the Reptiles began about 252 years ago, so this could be a choice. Eukaryotes formed around 1.5 billion years ago, so probably not a possible choice. Based of the data I provided you, C is the most likely answer. Hope this helps!