A vestigial trait A) is caused by inactive genes

B) is a sign of an intermediate form

C) no longer appears in the genetic code of an organism

D) no longer performs the function for which it originally evolved

Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work)

Below, the levels of organization in a multicellular organism are shown from least to most complex. which level of organization can be described as several different types of tissues working together to perform a common task?

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.