The potato crop devastation occurred in Ireland for not using one single potato species.
Explanation:
Potato became the staple crop of 18th Century Ireland and was easy to grow in the soil of this place. Later, it became the most dependent crop of the people of Ireland which made its supply very demanding leading to the yielding of more than one species of potatoes.
This yielding reduced the variety in the genetics of potatoes that helped in preventing the disease that affect potatoes by making the Irish people susceptible to famine. The Phytopthora bacteria affected the potatoes of North America in the year 1840 and Ireland’s moist weather in that same year made the blight to thrive.
Answer:
Option B.
Explanation:
Hypersensitive response is the procedure that is used by the plants to stop itself to get infections caused by the microbial pathogens. It is characterized by the local cell and tissue death often occurs at or near an infection site in a plant. Hypersensitive response limits the growth and spread of pathogens to the other regions of the plant.
Thus, the correct answer is - option B.
Answer:
Attached, or bound, ribosomes are found on the exterior of an organelle called the endoplasmic reticulum.
People use plants as fuel for transportation and heat. ... Fossil fuels store carbon, just as living trees and plants do. When burned, they release carbon dioxide into the air. The large and growing amounts of carbon dioxide in our atmosphere cause Earth's climate to warm.
