If blue feathers (b) are dominant to red feathers (b), what will the phenotype be for an offspring of an offspring with the genotype bb?

The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?

Does solar energy ever run out? brainliest