<span>Water-soluble vitamins are much more easily stored in the body, but they are only required up to a certain amount. Anything extra is secreted or excreted. Fat-soluble vitamins, on the other hand, are stored in the body when an excess is taken in: this can lead to a toxic level in some instances.</span>
The muscles that contract (during cold or fright), the slanted hair follicle is pulled upright, dimpling the skin surface with goosebumps are called arrector pili muscle.
The arrector pili muscle are tiny muscle that attaches to the base of the hair follicle at one end and to the dermal tissue on the other end. When the body feels cold or fright the body generate heat and the arrector pili muscle contract all at once, that causes goosebumps on the skin.
The arrector pili muscle acts as the thermoregulator. Straight stand hair increases air trapping, so that the heat loss from the body decreases. The arrector pili muscle are mediated by the sympathetic nervous system.
To learn more about sympathetic nervous system here
brainly.com/question/12958051
#SPJ4
<span>Instead, they have evolved chloroplasts, as a
way to generate their own carbohydrates without consuming other
organisms, by harnessing solar energy to convert carbon dioxide and
water into carbohydrates. ... Mitochondria, on the other hand, efficiently break down macromolecules, such as carbohydrates or lipids, into ATP.</span>
Um I think it's 3 but I might be incorrect
Answer:
It is used as instructions to make protein.
Explanation:
- Role of RNA in Protein Synthesis involved in the process of building proteins in the cell,
- Transfer RNA (trna) is used to bring amino acids to the ribosome,
- Messenger RNA (mRNA) is used as instructions to make protein in the cell and
- Ribosomal RNA, (rRNA) is used to build ribosomes.
