5.how does temperature change affect surface tension?

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

Injuries in the environment are a result of

Choose the best definition of allele. a. one of several possible versions of a gene, which each produce a different phenotype b. an organism that's purebred for a given trait c. the process of fertilizing a plant with pollen from another plant d. a set of genes that are located on the same chromosome and so are tightly linked