How can natural selection account for the long snout of an anteater?

Aheterozygous normal male marries a woman with a sickle cell anemia. give the genotypes and possible phenotypes of the offspring

Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d

Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these