The guppy is a species of small freshwater fish.
Scientists observed that the average size of guppies
in a pond decreased over a few years after a guppy
predator was introduced into the pond. Which of
the following best explains the change in guppy
size?
A Speciation
B Convergent evolution
C Inbreeding
D Natural selection

Grade 91.)the gravitational pull from the moon words).2.) what is the rate of gravitational 3.)if you drop a hammer, is it more likely to drop handle side down, head side down, or equal chance that it will land either way? why? 4.)a car moves 60km east and 90km west.a.) what is the distance the car traveled? b.) what is the car's displacement5.)what is the average velocity of a car that moved 60 km south in 3 hours? 6.) a car starts from rest and acceleration to 60 m/s over a time of 5 seconds. what is the acceleration of the car? 7.)what is the speed of an object at rest?