Answer:
The correct answer is - allopatric speciation.
Explanation:
The isolation of two populations of the same species from one another due to the geographic changes this type of speciation or isolation known as allopatric speciation.
Speciation is the slow process in which the preexisting population of one species evolved to new species. Allopatric speciation, also known as vicariant speciation or geographic speciation,
Thus, the correct answer is - allopatric speciation.
Answer:
b. Phosphofructokinase; Fructose-1,6-bisphosphatase
Explanation:
Glucagon is a hormone which functions to initiate gluconeogenesis whwreas insulin functions to initiate glycolysis.
Fructose-2,6-bisphosphate (F26BP) is an allosteric regulator of the <em>glycolytic and gluconeogenic enzymes phosphofructokinase-1 (PFK-1) and fructose-1,6-bisphosphatase (FBPase-1).</em>
It stimulates glycolysis and inhibits gluconeogenesis by binding to its allosteric site on phosphofructokinase-1 reducing its affinity for the allosteric inhibitors ATP and citrate .
It is formed by phosphorylation of fructose-6-phosphate catalyzed by <em>phosphofructokinase-2</em> and is broken down by <em>fructose-2,6-bisphosphatase </em>which are two separate enzymatic activities of a single, bifunctional protein (PFK-2/FBPase-2).
Phosphorylation of PFK-2/FBPase-2 due to glucagon release enhances its FBPase-2 activity thereby stimulating gluconeogenesis and inhibiting glycolysis.
Dephosphsorylation of PFK-2/FBPase-2 due to insulin release enhances its PFK-2 activity, thereby stimulating glycolysis and inhibiting gluconeogenesis.
Really really really small
Answer:
They are single celled organisms.
Explanation:
1. When we say life is carbon based, we mean that our skin, hat and cells are all made out of molecules that contain large amounts of carbons. Carbon atoms form the backbone of almost all the important biological molecules in our bodies ( except water ).
