Identify the event that indicates that evolution has occurred. a. a white-eyed fly is born into a population of brown-eyed flies. b. an allele frequency changes in a population. c. a flock of birds dies. d. a new predator comes into an environment.

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind

The image below shows a weather service map. which details best describe this map? check all that apply

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?