Me.. my question is about science.( the skeletal system) the question is: a thick band of bone forms around a broken bone as it heals. in time, the thickened band disappears. explain how this extra bone can disappear over time. --

The images show fossils of a modern bird and two extinct organisms (a tyrannosaurus rex and an archaeopteryx). based on the structure of the three organisms, it can be concluded that . the archaeopteryx and bird have wings, while dinosaurs have limbs. so, it can be concluded that .

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a ) moss sporophyteb) moss gametophyte bearing both male and female gametangiac) fern sporophyted) fern gametophyte bearing only antheridia

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?