Zebras and tigers both have striped patterns that help them to hide among their environments. Both animals are also mammals that have four legs. Though they have much in common, there are some major differences between them. What characteristic most likely distinguishes the two animals from each other?
A. Zebras have fur, and tigers do not.
B. Zebras have hooves, and tigers do not
C. Tigers have teeth, and zebras do not.
D. Tigers have ears, and zebras do not.

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.

Match the types of competition to their descriptions

Explain light independent reactions