Answer:
granular cells of the juxtaglomerular apparatus
Explanation:
Renin is a secreted hormone, stored and produced by granular cells. This enzyme is responsible for regulating the water gradient in the human glass and blood pressure. This enzyme helps regulate the extracellular gradient in the blood cell plasma and controls any problems that may appear in the arteries or in all blood vessels in the body.
the eyebrows are proximal to the jaw
Answer:
Nucleus
Explanation:
Prokaryotes are the singled cell organisms that do not have a true nucleus which means like eukaryotes they lack a membrane-bound nucleus. So the genetic material of prokaryote are present in the cytoplasm of their cell.
Apart from the nucleus prokaryotes also lack membrane-bound organelle like mitochondria or chloroplast which are present in eukaryotes and helps in ATP formation for the cell. So prokaryotes use the plasma membrane of cell for production of ATP.
Therefore an organism can be classified as a prokaryote if it lacks a nucleus and other membrane-bound organelles.
Variance would be the most vital measure of variability in the statistics field. It is then the measure of how far the data set is being spread out. It would be the average of the differences from the mean thus would give an idea of how data is being spread.
Answer:
The insects developed pyrethroid resistance.
Explanation:
Pyrethroid Insecticides:
- Pyrethroids are synthetic derivatives of the natural compounds, pyrethrins, produced by Chrysanthemum plants to prevent insect attacks.
- Pyrethrins work by locking sodium channels in the cell membrane. This inhibits nerve impulses and paralyses the insect, ultimately resulting in its death.
- In the 1940s, synthetic pyrethroid insecticides were first used on auricular crops. But till the 2000s, 100 of insect species were resistant.
- This occurred due to the fact that the allele for pyrethroid resistance increased throughout the population.
- Pyrethroid resistance developed to enable the insects to survive. Natural selection allowed an exponential transfer of insecticide resistance genes throughout the insect population.
- Three major mechanisms of resistance were identified by scientists:
- Increased expression of genes involved in toxin detoxification.
- Decrease in sensitivity of the target proteins (on which pyrethrins act).
- Decrease in the insecticide penetration through the cuticle.
