Question 6 (2 points) Which is an example of artificial selection? a b Big Horn sheep fighting to defend females, who mostly breed with the male defending them. A lab technician altering the DNA of a racehorse to create a faster horse. The egg cell of a sheep being used to create an exact copy of the parent sheep. Racehorse owners breeding their mares to the stallion who won The Triple Crown. C С d​

Previous pagenext pagepage 3 of 10question 3 (1 point)which of the following consist of cells that do not have a nucleus? of the above

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

Explain why phospholipid molecules form a bilayer. (3 marks)