Why two parent who a affected will not have any normal children but parent without hartnups disease could have child with hartnups

Describe at least 2 abiotic and two biotic factors found in the desert biome how do these abiotic factors interact with the biotic factors

The many stone tools, fragmentary animal bones, and teeth found at gran dolina, spain, indicate that hominids there? a. processed and consumed animals and other hominids. b. did not differ appreciably from earlier asian homo erectus. c. were similar to later homo sapiens. d. none of the above

Need with these questions . need the answers in a rush for these questions are the answers i put down are correct or not? ?