Which of the following is an example of light pollution?

a
a street lamp that has a cover around it that focuses all of the light towards the ground allowing people to see the sidewalk.
b
a construction project that is careful to avoid working at night in order to avoid the use of lights.
c
a roadway that has new technology utilizing paint that glows at night and motion sensor lights to avoid using too much light.
d
a large building in new york city that leaves all of their lights on indoors and outdoors during migratory seasons.

Alichen is an organism that structurally appears to be a single organism. but a lichen is actually two different organisms—a fungus and green algae—living together as one organism. the fungal partner derives its nutrition from the photosynthesizing algae. how does a lichen differ in its photosynthetic activity from elysia chlorotica, the sea slug that’s considered to be a photosynthesizing animal? a. in lichens, the fungi photosynthesize on their own, while elysia chlorotica forms a relationship with a photosynthesizing plant. b. in lichens, the relationship with the algae lasts throughout the life cycle, but in elysia chlorotica, the relationship occurs only during the immature juvenile stage of the slug’s life cycle. c. lichens can photosynthesize only because of the living algal partner, while elysia chlorotica incorporates chloroplasts from algae into its cells. d. in lichens, the association between the fungi and algae is permanent, while elysia chlorotica associates with a photosynthesizing organism only when it requires food.

Describe at least 2 abiotic and two biotic factors found in the desert biome how do these abiotic factors interact with the biotic factors

What is one function of the embedded proteins