Answer: Heterotrophs
Explanation: Heterotrophs, also known as other-feeders, can't capture light or chemical energy to make their own food out of carbon dioxide. Humans are heterotrophs. Instead, heterotrophs get organic molecules by eating other organisms or their byproducts. Animals, fungi, and many bacteria are heterotrophs.
Answer:Serratia genes for pigment production are induced at certain temperatures
Explanation:
The red pigment production is dependents on temperature.
Some bacteria are thermophile doing very well in extreme temperature while some are very sensitive to temperature changes.
The red pigment production is regulated by certain gene in the bacteria but can only be activated at certain temperature. 25°C was suitable for the red pigmentation that is why the plate color changed this indicate the sensitivity of the pigment production to temperature changes.
Conclusion - To get the best of serratia it is best to keep them at a temperature lower than the normal room temperature for the gene to be activated and full express itself.
Answer:
Answer is ii, i ,iv, iii.
Explanation:
The dendritic cell originates from the bone marrow, and enters the tissue as immature dendritic cell by migrating from the bone marrow.
The dendritic cells are antigen - presenting cells, which are called accessory cells, of the mammalian immune system.
These are called inactivated vaccinations.
Answer: amylopectin and glycogen have the same kind of linkages, but glycogen has a higher frequency of αα-1,6'-glycosidic linkages
Explanation:
Amylopectin is one of the two main fraction of starch. It has several repeating units of glucose molecules linked by α-1, 4-glucosidic linkage, but has many side chains attached to the basic chain by α-1, 6-glucosidic linkages
Glycogen, as well, is a branched polysaccharide and resembles amylopectin very much in structure, but glycogen has more glucose residues per molecule and about one-half times as many branching points.
