Why do some antibiotics not work against certain bacteria?

The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight.which of these is the most likely effect on the ecosystem? a-an increase in biodiversity. b-an increase in immigration to the area. c-a decrease in available water. d-a decrease in plant growth.

How do accessory pigments chlorophyll?

Acceleration is a direct result of a.) balanced forces b.) unbalanced forces c.) gravity d.) velocity