Curly hair, large nose, brown eyes: our give the instructions that determine human traits
a. cells
b. gametes.
c. genes.
d genotype

What type of appendages do sponges cnidarians roundworms annelids mollusks arthropods echinoderms and vertebrate have? jointed, not jointed, absent  

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

Which of the following describes what an activator an enhancer are