In a popular species of frogs, black spots are a dominant trait and their absence is a recessive trait. do you know the rest of this question

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

Which statement correctly describes other ways in which nebulae and stars are different? a. a star always has a higher density than a nebula. b. stars can form inside a nebula but a nebula can never be produced by any star. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star. reset submit

People with one sickle cell allele are not likely to get malaria. what is this an example of?