Two students made models of a population of bacteria before and after they were treated with an antibiotic for several generations. Use the models to answer the question. Which statement below best explains why one of the student’s models is more correct than the other?

A.
Student A has the model that is most correct, the model shows how some bacteria changed themselves in the initial population of bacteria which led to those bacteria surviving the antibiotic while the other bacteria died off.

B.
Student A has the model that is most correct, the model shows variation in the initial population of bacteria which led to some bacteria surviving the antibiotic and reproducing while the other bacteria died off.

C.
Student B has the model that is most correct, the model shows how some bacteria changed themselves in the initial population of bacteria which led to those bacteria surviving the antibiotic while the other bacteria died off.

D.
Student B has the model that is most correct, the model shows variation in the initial population of bacteria which led to some bacteria surviving the antibiotic and reproducing while the other bacteria died off.

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

Will mark brainliest i only need the ! 1.use ten beads and a centromere of one color to construct the long chromosome. use ten beads and a centromere of a second color to construct the second chromosome in the long pair. make a drawing of the chromosomes in the space below. 2. for the second pair of chromosomes, use only five beads. 3. now model the replication of the chromosomes. make a drawing of your model in the space below. part b: meiosis i during meiosis i, the cell divides into two diploid daughter cells. 4. pair up the chromosomes to form tetrads. use the longer tetrad to model crossing-over. make a drawing of the tetrads in the space below. 5. line up the tetrads across the center of your “cell.” then model what happens to the chromosomes during anaphase i. 6. divide the cell into two daughter cells. use the space below to make a drawing of the result. part c: meiosis ii during meiosis ii, the daughter cells divide again. 7. line up the chromosomes at the center of the first cell, one above the other. separate the chromatids in each chromosome and move them to opposite sides of the cell. 8. repeat step 7 for the second cell. 9. divide each cell into two daughter cells. use the space below to make a drawing of the four haploid cells

What evidence could be used to convince policy makers to change a shipping lane from going through a whale breeding ground? information on the number of all whale species currently alive information on the number of all whales hit by boats in the given area information on the number of whale deaths in the world's oceans information on the number of whale offspring born every year. (a) scientists could collect and combine data on fish populations all around the world to show that their populations are declining. (b) scientists collect and combine data on fish populations all around the world to show that their populations are increasing. (c) scientists work together and use past data to show that fish populations are becoming locally extinct in some areas. (d) scientists work together and use past data to show that some fish populations are adapting to environmental changes.