Answer:
CD40L
Explanation:
The CD40 ligand (CD40L) protein is a transmembrane glycoprotein which is expressed on activated T cells and belongs to the tumor necrosis factor (TNF) superfamily. The hyper IgM syndrome is caused by mutations in the CD40L gene, where the defective protein can no longer bind CD40 on antigen-presenting cells. The X-linked Hyper IgM syndrome is characterized by abnormal levels of immunoglobulins, i.e., low levels of IgG and IgA, and increased/normal levels of IgM. Because CD40L gene is located on the X chromosome, this disorder is observed much more frequently in males than in females.
Answer:
sea lions
sharks
sea birds
albatross
Explanation:
The article, "Human Impact on the Galapagos Islands" and the video "Long Line Fishing Threatens Wildlife of the Galapagos Islands", both mentioned that fishers catch animals in the water bodies that are not their main fishing targets. Some of these animals include sea lions, sharks, sea birds, and the albatross.
In the article, it was explained that overfishing was becoming a major problem of the Galapagos Islands. Sea cucumbers and sharks were described as targets that are endangered and might soon become extinct.
In the video, sea lions, sharks, sea birds, and albatross were mentioned as targets of long line fishing which negatively affect the ecology of the Galapagos Island.
Answer:
Vitamins A and D are added to margarine during production so it will have a similar vitamin level to butter. Nutrients may also be added to foods to fortify or enrich them even if the vitamins and minerals added are not normally contained in that food.Margarine makes an important nutritional contribution to the diet by being a source of one or more essential fat-soluble vitamins such as vitamins A and/or D and by being low in saturated fat.
Correct me if i'm wrong i think the best answer would be d. the cow uses all of the corn's energy for life processes.
