Answer:
skin acts as a protective barrier, therefore it does not secrete hormones
"Diffusion is one way<span> by which </span>materials move<span> in and out of </span>cells<span>. Small molecules such as oxygen </span>can<span> pass </span>through<span> tiny gaps in the </span>cell membrane<span> by diffusion. ... Oxygen molecules </span>move<span> out of the </span>cell<span> by diffusion."</span>
Answer:
The correct answer is: deposition of interferon on bacterial cells.
Explanation:
Phagocytosis is the mechanism by which a cell uses its plasma membrane to ingest a big particle, forming a phagosome within the cell. It's a form of endocytosis used by the <u>immune system to eliminate pathogens such as </u><u>bacteria </u><u>and cell debris</u>.
Phagocytosis can be enhanced through various ways when an infection is taking place in the body. For example, cytokines and TNF are secreted by different kinds of cells to stimulate this process - for these cytokines to be released, certain parts of the bacteria called PAMPs need to be recognized by specific receptors located in phagocytes and epithelial cells called TLRs. Another way to stimulate this mechanism is by depositing complement fragments on bacterial cells, which is done thanks to the Complement cascade, a system of great importance in the innate immune response against extracellular bacteria - these fragments will opsonize ("mark") the pathogens for the phagocytes to recognize them and engulf them.
Interferon, on the other hand, while hugely important on the immune response against viruses and other pathogens that infect our cells by entering them and using their organelles to replicate and translate proteins, is not an enhancer of phagocytosis, as it is mostly involved in the translation of genes that will lead to the infected cell's death.
planet's temperatures which is one main thing about global warming. Like greenhouse, sun's warmth in a planet's lower atmosphere get's trapped. Caused by the presence of water vapour, carbon dioxide, methane, and a lot of other certain gases that are in the air. (greenhouse effect )
Way's to help:
1. Use less energy
2. Changing the way you eat can help (healthy)
3. CARS! There is always something about doing different transpiration that help ( I don't really get that?)
5. Cleaning - Recycling/Throwing away trash
- You can look up very simple ways to help the earth if you aren't old enough to do some of the bigger options when trying to make a change.
Answer:
The correct answer is "C"
Explanation:
Klinefelter's disorder, XXY guys, can happen because of non-dis-junction of X chromosomes during pro-phase of meiosis I in females.
One of the eggs from such a meiosis could get both X chromosomes, and the other would get no X chromosomes.
On the off chance that these eggs are hence prepared with typical sperm, different sex chromosome aneuploidies could happen:
XXY - clean male who may have some female body qualities, and at times expanded learning obstacles.
XXX - There are no genuine stigmata associated with this disorder. Ladies with triple X as a rule are fruitful.
XO - clean female with short stature, with low mental capacity, inability to experience pubescence (Turner's disorder).
YO - Non-feasible; qualities on X chromosome required for advancement and endurance.
Non-dis-junction during sperm creation can likewise bring about aneuploidy of sex chromosomes.
