cheatgrass is an annual grass plant native to eurasia that was unintentionally introduced into the great basin area of utah and wyoming. during the colonization phase of cheatgrass invasions, populations exhibit rapid growth. biologists have estimated a finite rate of increase of 1.6. there are 150 cheatgrass plants in a single plot of land six years after the initial colonization. approximately how many plants were in the initial invasion at time zero

You can tell from this karyotype that the individual is female because the karyotype has two chromosomes labeled

Why are common names a problem for scientist?

Recently, crops of vegetables such as lettuce and green onions have been contaminated, while they are still on the farm, with bacteria that cause food poisoning. how will science influence the way the government responds to prevent an increase in food-borne diseases? because science has shown that lettuce and green onions are not nutritionally valuable, the government may pass laws that ban the sale of lettuce and green onions. because science has shown that there is no way to prevent bacterial contamination, the government may pass laws that punish businesses that buy lettuce and green onions. because science has shown that the washing of hands prevent the spread of infectious diseases among people, the government may pass laws that require hand washing by everyone who handles food. because science has shown there are ways to find the source of the contamination, the government may pass laws that require farm practices that reduce the contamination of lettuce and green onions.