Answer:
True
Explanation:
Cytokines are proteinaceous substances that are secreted by specific immune system cells. These belong to a category of signaling molecules that are helpful in communication between the cells of immune system and thus help to mediate and regulate immunity, inflammation and hematopoiesis. Cytokines have ability to act on three types of cells -
- The cell that secretes them
- The nearby cells
- The distant cells
These molecules bind to the receptors present on the responsive target cell and evoke a particular biological activity.
During superposition of a wave such as that of the oceans, when the crest and the trough meet, then they cancel out into the period. If two crests meet up, they add up to a crest that’s equivalent to the summation of their amplitudes. This is also true when two troughs meet up.
Answer:
To begin, you need to prepare a yeast solution. Add the yeast and sugar to the warm water. Stir and let it sit for 45 minutes. Once the yeast solution is ready, place a small drop onto a slide and cover with a coverslip.
Explanation:
1- The atmosphere (air)
2- Organic Matter (Which is non-living and the living)
3- Minerals and different kinds of rocks.
4- microorganisms (earthworms, insects, etc)
5- water (which is important.)
Answer:
The deers might not have enough food for themselves due to the drought which decreased the growth of prairie grass making it lesser. Deers will slowly starve to death, making the population decrease. Hence, it will become extinct.