Extensive irrigation in arid regions causes salts to accumulate in the soil. (when water evaporates, salts that were dissolved in the water are left behind in the soil.) based on what you learned about water balance in plant cells, explain why increased soil salinity (saltiness) might be harmful to crops.

What are potential sources of error in marta’s experiment

How many chromosomes are in a human gamete?

Embryonic stem cells are cells derived from an embryo. these cells can be used to create new tissues for patients suffering from certain illnesses and disorders. which statement best summarizes why the use of embryonic stem cells could be seen as unethical? a. some people consider embryos to possess rights equal to those of fully developed human beings. b. extracting stem cells from embryos is a very energy-intensive process, which consumes resources that could be used elsewhere. c. embryos are difficult to obtain, so the monetary cost of using them for research outweighs their benefit. d. the process of extracting stem cells from embryos generates biohazardous waste that cannot be safely disposed of.