Cancerous cells often produce tumor markers as well as its own cancer cells that act as antigens that can be recognized by antigen presenting cells and be presented to natural killer (NK) cell progenitors that are found in the spleen, lymph nodes, thymus, and other lymphoid organs. With malignancy, the production of NK cells will be increased. NK cells works by killing cells that do not have an inhibitory signal (i.e. cancer cells) and preserving cells that do have an inhibitory signal (i.e. normal body cells).
Answer:
Explanation:
The difference between the homozygous and heteozygous in terms of genotype and phenotype is
For homozygous: an homozygous individual can carry similar alleles for a trait for example similar dominant alleles (FF) as the genotype and show a phenotype of black fur for the dominant allele and an homozygous individual can also carry the recessive allele (ff) as the genotype but show a phenotype of white fur
But for the heterozygous individual: the individual carries two disimilar alleles for a trait eg carry both the dominant and the recessive alleles. For example (Ff) as the genotype and showing black fur as the phenotype.
Answer:osmoregulation is important in maintaining the salt and water concentration in the body of plants and animals
Explanation
3 Chemicals increase blood calcium levels to normal. 1. 25 - Dihydroxycholecalciferol 2. Parathyroid (PTH) 3. Calcitonin It's (PTH)
Answer: The body is a system filled with smaller systems. Each used to help out the other and benefit the body as a whole. For example, the respiratory system takes in oxygen, the heart then takes the oxygen in the blood and pumps it throughout the entire body. Then veins carry that blood to muscles and organs. Each unique system has a job to do, when one malfunctions the whole system can fail.
Explanation: Hope this helps :)
