Answer:
A sporophyte (/spɔːroʊˌfaɪt/) is the diploid multicellular stage in the life cycle of a plant or alga. It develops from the zygote produced when a haploid egg cell is fertilized by a haploid sperm and each sporophyte cell therefore has a double set of chromosomes, one set from each parent.
Explanation:
A. 25 percent, based on punnet square and contingent that Wilson’s Disease is a recessive gene.
I believe the bone system that red marrow belongs to is D. Skeletal system.