An article in the local paper is discussing a new copper mine in new mexico. it states that all that is needed to identify a substance is the mass and volume of a sample. is this an accurate statement? why or why not? a- yes, because mass and volume are unique properties of a substance. b- yes, because mass and volume allows for finding density, which is a unique property of a substance. c- no, because although mass is a unique property of a substance, volume is not. d-no, because only density is a unique physical property of a substance and mass and volume are not enough to find it.

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.

What would be the result if crossing over did not happen during meiosis in humans? a. there would be less genetic variation in humans. b. parents would be more likely to look like their children. c. the human population could not reproduce. d. children would have more chromosomes.

While washing her hair olivia noticed that she was losing a lot of hair she visited a clinic and the physician reassured her that her hair would grow back how do you think olivias hair will grow back