Question

As climate change leads to drier and drier summers in the southeastern U.S., more and more homeowners find that they have crabgrass growing in their yards. The reason for this is that _________.A. Crabgrass is a type of cactus, so it grows better in dry climates.B. As the climate changes, homeowners are not caring for their yards as well.C. Crabgrass is a tropical plant that likes hot, dry climates.D. Crabgrass is a type of C3 plant that does well in dry climates.E. Crabgrass is a type of C4 plant that does well in dry climates.

Answer 1

The reason for growth of crabgrass in the yard of Southeastern US homeowners are that Crabgrass is a type of C4 plant that does well in dry climates.

Option E

Step-by-step explanation:

C4 plants are a categorical plant which has been categorized based on their photosynthetic pathways. Usual photosynthetic process involves a PCR pathway which refers to be C3 cycle and plants hence called C3 cycle. C4 is an adaption to this pathway.

C4 pathway overcomes the photo-respiration limits of C3 cycle, and this helps to retain water much more and thus can be sought to adapt in the drier climate or drought. It can also withstand higher amount of Carbon dioxide concentration.