Which statement is true regarding monocytes a. they produce antibodies against cancerous cells. b. they have a granular appearance under a microscope. c. they digest pathogens. d. they produce antibodies against microorganisms

Where is having brightly colored feathers that attract mates most clearly an adaptation for a bird? a. a forest with dense vegetation b. a sandy beach beside an ocean c. a snowy tundra with little vegetation d. a swamp with many hawks that eat birds