In a water potential investigation, cylinders of crosne (a type of tuber plant) are placed in sucrose solutions of various concentrations in order to determine the water potential of the crosne - one in each beaker of sucrose solution. Each cylinder of crosne has a 0.3 cm radius and a 2 cm height. The lab was conducted at a constant temperature of 20°C in open beakers. Concentration Initial Mass Final Mass
0.2M 2.3 2.41
0.4M 2.41 2.39
0.6M 2.38 1.97
0.8M 2.34 1.84
1M 2.33 1.81

Required:
a. When a yam cylinder is placed in a 0.2M sucrose solution, will water flow into or out of the yam? Explain your reasoning.
b. Based on the data above, estimate the yam's water potential.
c. Assume the same sucrose solutions were used and a sweet potato trial was conducted at the same time with the yam experiment above. A literature search determined that a sweet potato has a water potential of -19.5 bars, At what sucrose concentration would you expect to find minimal loss or gain in the cylinder of sweet potato?

Choose one animal (cheetas) and research on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

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

The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)