Many species of orchids are known as epiphytes. these are organisms which grow upon or are attached to other plants. epiphytic orchids use trees or shrubs for physical support, and do not or harm the trees or shrubs in any way.
what type of relationship does an epiphytic orchid have with its host plant?
commensalistic
mutualistic
competitive
parasitic

Dna. we have heard that we are a product of our dna. but where is it? how do we "get" our dna? it is passed to us, from our parents, but in what form? several vocabulary words associated with inheritance are used interchangeably and sometimes, incorrectly. let's see if you can clear this up for someone just learning about inheritance and cell structure.

Select the correct answer from each drop-down menu proteins are

Scientists discover two populations of mice on either side of a major river. the two populations have almost identical genes but the mice from one side cannot breed with mice from the other. this is most likely because