Which statement best describes the difference between xylem and phloem?
a
Xylem transports water and nutrients in the plant, and phloem transports water and sugar.
b
Xylem cells are thin-walled and tubular, and phloem cells are thick-walled and strengthened by lignin.
c
Xylem tissue is found in the growing parts of plants, and phloem is found on the outer part of plants.
d
Xylem cells make up vascular tissue, and phloem cells make up ground and dermal tissue.

Suppose you are estimating the size of a blue crab population. what is the population size if the number marked in the first catch is 40, the total number in the second catch is 200, and the number marked in the second catch is 50?

How do disease caused by bacteria and disease caused by viruses react to antibiotics?

Clara wrote the following hypothesis for an experiment about acidophilic bacteria. bacteria cells will stop dividing in a basic (alkaline) environment because of the high ph. which statement is the best way to restate the hypothesis so that it is more specific? growing acidophilic bacteria in some environments will cause the cells to stop dividing because of ph. if the ph of their environment is changed, acidophilic bacterial cell division will be affected. if the environment of acidophilic bacterial cells becomes alkaline, the bacteria will stop dividing. the more alkaline an environment, the less cell division will occur in bacteria.