What is the likely explanation for the observation that during mass extinctions the size of a taxon's range is no longer positively correlated with its chance of survival?

What will be an ideal response?


ANS:
Mass extinctions take place on a global scale. Other than with local extinctions, large ranges no longer protect a taxon against global effects during a mass extinction.

Biology & Microbiology

You might also like to view...

Which of the following mechanisms would most likely be involved in repairing a single point mutation?

A. mismatch repair B. base excision repair C. nucleotide excision repair D. base excision repair and/or nucleotide excision repair E. mismatch repair and or base excision repair

Biology & Microbiology

What structure is indicated by the arrow in this image?

A. sporangia B. supporting stalk C. light sensitive hyphae D. mycelium E. rhizoids

Biology & Microbiology

The transport receptor, exportin, transports:

A. mRNA to the nucleus when associated with GDP-bound Ran protein. B. mRNA to the cytoplasm when associated with GTP-bound Ran protein. C. noncoding RNA to the nucleus when associated with GDP-bound Ran protein. D. mRNA to the cytoplasm when associated with GDP-bound Ran protein.

Biology & Microbiology

Various species of scavengers fighting over the carcass of a dead animal is referred to as

A) consumption competition. B) preemptive competition. C) encounter competition. D) overgrowth competition.

Biology & Microbiology