Which example can be classified as a trace fossil? A. shrimp burrow

B. imprint of a fern leaf

C. dinosaur bone

D. mold of a clam shell

Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?

Acquired mutations can result from radiation pollution toxins inheritence select all that apply

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?