In cattle, there is an allele called dwarf (D) which, in the heterozygous genotype, produces calves with legs that are shorter than normal. Cattle with normal-size legs have the genotype (dd). If a “dwarf” bull is mated to a “dwarf” cow, what fraction of the living offspring would one expect to have normal length legs

Select all the correct answers. lactobacillus is a bacteria that live inside humans. these bacteria live on the nutrients from our bodies. they to keep our gut clean and healthy. s. typhi is a bacteria that enter our bodies through contaminated food. this bacteria causes infections in the body. based on this information, which two statements about the association between these bacteria and humans are true? a. lactobacillus shares a parasitic relationship with humans. b. s .typhi shares a parasitic relationship with humans. c. both lactobacillus and s. typhi share a parasitic relationship with humans. d. both lactobacillus and s. typhi share a mutualistic relationship with humans. e. lactobacillus shares a mutualistic relationship with humans, and s. typhi shares a parasitic relationship multiply chrse

What is thought to have caused the mass extinction at the end of the cretaceous period?

Which process of living things produces water that enters the water cycle