The earthworm's nephridia filter out wastes. which human organs have a similar function?
a. eyes
b. kidneys
c. heart and lungs
d. mouth and anus

The body is protected against harmful flu viruses by

You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13

Which statement describes how favorable traits in a population relate to natural selection? they are the only traits that ever exist in the population. they build in the population over time. they are rarely passed on to offspring. they are found only in a few individuals within the population.