Biology wrong LE
Terms in this set (7)
a community is all the organisms of
a)one species living in a habitat
b) different species living in a habitat
c)one population living in a habitat
d)different ecosystems in a habitat
If there is a rise in DDT concentration as you go up a food chain what is this an example of?
Why may a mutation change the structure of a protein produced by a bacterial cell?
A mutation would change the sequence of DNA bases in a gene which may mean that different amino acids were coded for so the structure of the resulting protein would be different
Explain why animals such as mice show differences in fur colour
Because they have different alleles
Natural selection only occurs when their is a sudden environmental change T/F
Give two selective pressures that animals may face
Competition for resources
What is meant by the term adaptation?
An inherited characteristic that makes an organism more likely to survive in its enviroment