Answer:
When a phenotype produced by certain alleles helps organisms survive and reproduce better than their peers, natural selection can increase the frequency of the helpful alleles from one generation to the next – that is, it can cause microevolution.
Explanation:
the correct answer is actually electrical energy but in this case the answer is D) solar energy
Bacteria can evolve quickly because they reproduce at a fast rate. Mutations of bacteria produce new strains. Some bacteria might become resistant to certain antibiotics.
Sandwich Generation
This phenomenon is most prevalent in the developed world where the expectancy rates are high. Children are usually considered as 'Capital Intensive' while the elderly parents are considered as labor and time intensive hence balancing the needs by sandwiched parents is typically challenging.
It eats away into personal time and therefore increases one's risk of developing anxiety and depression.
Answer:
Many second messenger systems activate kinases, enzymes that transfer a phosphate group from ATP to a protein. The phosphorylation of proteins sets off a series of intracellular events that lead to the ultimate cellular response.
Explanation:
For example, the second messenger cAMP activates the protein kinase A (PKA), which catalyzes the phosphorylation of other proteins.
The second messenger Ca²⁺ forms an active complex with a protein called calmodulin. This complex activates CaM kinases, that phosphorylate a group of target proteins, regulating its activities.