Mass extinction Notes: Definitions & Explanations PDF | Download eBooks
Study Mass extinction lecture notes PDF with biology definitions and explanation to study What is Mass extinction?. Study mass extinction explanation with biology terms to review biology course for online degree programs.
Mass extinction Definition:
Mass extinction is a phenomenon in which large numbers of species become extinct worldwide.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Mass extinction Notes:
Mass extinction is a widespread and rapid decrease in the biodiversity on Earth. 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. Estimates of the number of major mass extinctions in the last 540 million years range from as few as five to more than twenty. One of the mass extinctions wiped out the dinosaurs from earth.
Keep Learning with Biology Notes
What are Prokaryotic cells?
A prokaryote is a unicellular organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle. Prokaryotic cells are ...
What is Translocation?
Chromosome translocation basically is a phenomenon that results in unusual rearrangement of chromosomes or an arrangement which is not present ...
What are Prions?
A prion is a type of protein that can trigger normal proteins in the brain to fold abnormally. Prion diseases ...
What is Diploid?
A diploid cell is any cell that contains two complete sets of chromosomes. Which means they have two copies of ...
What is Transgenic?
The term transgene describes a segment of DNA containing a gene sequence that has been isolated from one organism and ...
What are Enhancers?
An enhancer is a short (50-1500 bp) region of DNA that can be bound by proteins, which are also called ...
