O que são espículas virais? A) sao estruturas de defesa dos virus.
B) sao estruturas de reconhecimento e fixação na celula hospedeira.
C) sao estruturas de comunicação entre os virus.
D) sao estruturas que servem para furar e destruir a célula hospedeira.
E) sao estruturas de proteína que formam s anticorpos dos virus.

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

49 ! how are energy cycles and growth cycles related?

How does climate change affect producers?