Which of the following is not one of earth's four spheres? 1) mesosphere 2) hydrosphere 3) atmosphere 4) biosphere

What are the characteristics of living things

Identify the various levels of atmosphere. troposphere mesosphere exosphere stratosphere thermosphere

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