What is an organism's niche? a. its physical surroundings b. its particular species, according to the biological species concept c. its method of reproduction d. its interactions with the living and nonliving parts of the environment

Explain two reasons you think it is important for scientists to search for new ways to treat cancer

The sketch shows a rynchosaur, an extinct animal that is known only from fossils. there has been much debate about the classification of these creatures. some scientists suggest that they belong with primitive amphibians, and some think they are related to snakes and lizards.the data equally support both cases. which statement best explains how to draw a cladogram that includes the rynchosaur? draw the cladogram for amphibians. draw the cladogram for reptiles. draw two cladograms, both showing the traits, and leave it as a hypothesis. draw two cladograms, both showing the traits, and have scientists vote

20 the compound al(nh3)2 has atoms of nitrogen.