Which characteristic of four different dinosaur fossils makes a dinosaur most similar to the present-day birds? a) flexible wrist b) flapping ability < -- *i chose this answer c) flight feathers d) primitive feathers

B flapping ability so you were right

welp i got that wrong it is not b ;(

sexual reproduction produces offspring with novel combinations of genes. species that reproduce sexually must maintain two different types of individuals, males and females, which can limit the ability to colonize new habitats as both sexes must be present.