While not all members of are pathogenic, two medically relevant species cause meningitis and gonorrhea in humans. While not all members of are pathogenic, two medically relevant species cause meningitis and gonorrhea in humans. Enterobacter Shigella. Neisseria Staphylococcus

Neisseria

Explanation:

Neisseria are a genus of bacteria belonging to the family Neisseriaceae. They are aerobic gram-negative cocci and often appear in pairs (diplococci).

Although most species of the genus are not pathogenic, however to important human pathogens from the genus are Neisseria meningitidis and Neisseria gonorrhoeae.

N. meningitidis is also called meningococcus. It causes meningococcal meningitis.

N. gonorrhoeae causes gonorrhea

the answer is a or when it says crossing over

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.