Astudent wants to learn how plants and animals interact with one another in an ocean habitat. which of earth's spheres should the student study the most? the geosphere the atmosphere the hydrosphere the biosphere

Competition occurs between species when

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

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