Answer:
The change in size of a gummy bear when placed in water is due to the presence of gelatin in the gummy bears.
Explanation:
Most of the gummy candies, like the gummy bears are made up of gelatin. To make the gummy bears, water and gelatin are mixed and heated. Then, this mixture is allowed to cool. During cooling, the water evaporates leaving the gelatin in a chewy form.
When the gummy bear is placed in water, the water is absorbed by the gummy bear due to osmosis. Hence, the gummy bears tend to increase in size.
Water is a hygroscopic substance i.e it tends to absorb water. So, this property of gelatin will enable it to absorb water and increase in size.
Answer:
buffer zone
Explanation: a small(ish) strip of land that isn't sprayed between the cultivated plot and the water to filter out the chemicals and stop it from reaching the water
Answer:
The correct answer will be- Option-4
Explanation:
Carl Woese is well known for dividing the five-kingdom system into three domains: Archaebacteria (ancient bacteria), Eubacteria and the Eukaryotes on the basis of the studies of the ribosomal RNA.
Since the three-domain system does not include the cyanobacteria group which includes the photosynthetic bacteria therefore, the Cyanobacteria is the correct answer.
Thus, Option-4 is the correct answer.
Answer: Integrins
Explanation: Integrins are proteins and are the principal receptors that attach the cell cytoskeleton to the extracellular matrix (ECM). Integrins by sense whether adhesion has taken place that is to say a cell can regulate the adhesive activity of its integrins from within.
