In a living organism, what is an organ? A. a structure composed of a number of tissues that work together to perform a specific task B. functional unit, or building block, of all organisms; smallest unit that can carry on the activities of life C. a structure that provides a specific service within a cell D. a group of similar cells that perform a common function

The buildup of sediments where a river empties into a slow-moving or nonmoving body of water is known as a/an

The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food

Select the correct answer. 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