The Student Room Group
Competition - post a photo you've taken of nature >>
Competition - post a photo you've taken of nature >>
Competition - post a photo you've taken of nature >>

Biology

In the English Midlands, populations of Cepaea hortensis occur in a variety of habitats including woods, hedgerows and grassland. Almost all Cepaea hortensis shells are yellow in this region, but in woods many shells are heavily banded and the dark brown band pigment covers most of the shell. In more open habitats many of the shells have bands with much reduced dark pigment, and in many cases none. Explain how selection could account for this difference between populations in different habitats? (4 marks)
haha you again, natural selection meaning that the shells with adventageous characteristics for their habitats will be more likely to survive and reproduce increasing their population size in that area. In the woods they have dark pigments for camouflage from predetors to avoid being eaten,and in open areas they are less dark to avoid standing out. make sure to have 4 points.

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you