State the importance of the following responses
(a) chemo-taxis in pollen grains
(b) positive rheotaxis in butterfly

Environmental impacts on evolution : mastery test

Which example describes a mutualistic relationship between organisms? young wasps prey on caterpillars. crabs eat the remains of dead fish. tapeworms feed on food in the intestines of cats ants protect a tree on which they feed.

Select the correct answer.what is the observable characteristic of a person called? o a. genotypephenotypeoc.alleleo d.gene