Which BEST describes why autotrophs begin every food chain? (A) There are more of them than primary consumers. (B) They are the only trophic level that can use the sun's energy to create glucose. (C) They get their nutrients from detritivores and decomposers. (D) They can reproduce faster than consumers.

Tay-sachs disease is caused by a mutation in the hexa gene located on chromosome 15. tay-sachs follows an autosomal recessive pattern of inheritance. with the of the diagram, identify which of the offspring will be an unaffected carrier. a diagram showing the genes of parents who are carriers of tay-sachs disease a. a, b, and c b. b and c c. a and d d. a e. d