Question

two populations of annelids (worms) live in distinct areas and on different soil types. researchers are interested in whether the populations have acquired different types of reproductive isolation. which method would be best to determine whether two populations exhibited gametic isolation? bring them into the lab. observe single pairs of a male from one population and a female from the other. see whether the sperm from the males of one population will fertilize eggs of the females of the other. if they do, then they exhibit gametic isolation. move them into a common experimental setting to see whether they will produce offspring. if they produce many offspring, they exhibit gametic isolation. move them into a common experimental setting to see whether they will produce offspring. if they produce few offspring, they exhibit gametic isolation. bring them into the lab. observe single pairs of a male from one population and a female from the other. see whether the sperm from the males of one population will fertilize eggs of the females of the other. if they dont, then they exhibit gametic isolation. observe when each population is active. if they are active at different times, then they exhibit gametic isolation.

Explanation:

Gametic isolation occurs when the gametes (sperm and eggs) of two different species or populations are unable to fuse to form a zygote. To test for gametic isolation between two populations of annelids, one should bring them into the lab, observe single - male - female pairs from different populations, and check if the sperm from males of one population can fertilize the eggs of females of the other. If fertilization does not occur, gametic isolation exists.

Answer:

Bring them into the lab. Observe single pairs of a male from one population and a female from the other. See whether the sperm from the males of one population will fertilize eggs of the females of the other. If they don't, then they exhibit gametic isolation.