What is meant by reproductive isolation? My teacher is wanting the class to get the answers from this website: https://flexbooks. ck12.org/cbook/ck-12-middle-school- life-science-2.0/section/4.9/primar y/lesson/origin-of-species-ms-ls

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.

well the answer is 2!

what are the awnser choices? i mean, without choices, it is an incompleat