A healthy pancreas secretes glucagon into the blood between meals and insulin right after a meal.
Glucagon and insulin have opposite effects on the blood glucose levels (insulin decreases it, glucagon increases it). <span>During digestion, foods that contain carbohydrates are converted into glucose, so the blood glucose levels are high after a meal. This increase in blood glucose signals pancreas to produce insulin which then stimulates the movement of glucose from the bloodstream into the cells. Some of those cells use the glucose as energy while other (in liver and muscles), store it as glycogen. Between the meals. the glucose levels in blood decrease, which triggers the pancreas to produce glucagon that stimulates the break down of glycogen into glucose.</span>
Answer:
C) two different species on the basis of reproductive behavior.
Explanation:
The two groups of birds have the same color and also share the same food resources and love together in the same habitat. However, these two groups of birds do not interbreed with each other. When two organisms do not interbreed and are not able to produce a viable and fertile progeny, they are said to be of two different species. The criteria is reproductive isolation that does not allow the members of two different biological species to interbreed. This makes the two groups of birds two different species on the basis of their reproductive behavior.
Answer:
d. DNA is used as a template to make a complementary strand of RNA - Transcription
Explanation:
This question is describing the process of TRANSCRIPTION, which is the first process involved in gene expression or protein synthesis. Transcription is the process by which a DNA template is used to synthesize a mRNA strand.
The process of transcription, which occurs in the NUCLEUS of an eukaryotic cell involves making a complementary strand of RNA (messenger RNA) from a DNA template. For example, a nucleotide A (adenine) in the mRNA will pair with a nucleotide U (uracil) on the mRNA.
Answer:
B. compound machine
Explanation:
A CD Player would be an example of a compound machine. A compound machine is one which contains several simple machines. Simple machines are the following: Levers, pulleys, screws, and inclined planes.
C. A slow gradual change over time