Answer:
One possible cause of persistent sadness could be depression
Explanation:
2. Antigen
Toxins
3. Some bacterial infections
Viral
4. Innate immune system
5. Adaptive
6. Leukocytes
7. Humoral response
Cell mediated response
8. B cells
T cells
9. Helper T cell
Cytotoxic T cell
10. Antibody production.
In the early stages the embryos of four different species will look the same .For example, fish embryos and human embryos both have gill slits. In fish they develop into gills, but in humans they disappear before birth. That what makes them different.
Lipogenesis takes place primarily in liver cells, but also in skeletal muscle and adipose tissue.It takes place<span> in the cytoplasm of your fat cells and liver cells. </span><span> Beta-oxidation is primarily done in the </span>Mitochondrial Matrix. Once the Acyl-carnitine comes into the mitchondrial matrix, <span>CPT-2 </span>enzyme takes the carnitine off and re-attaches to a CoA group,.
Answer:
DNA codes for RNA which codes for proteins... so A
if i could get brainliest that would be great :)
