Its B.
becuase the radiation forms the ultra violet radiation and absobs it.
I believe A because they have many cells
In this cross the trait of long tail fins is associated with the “Y” chromosome of the male.
Thus the alleles of the male are represented by XY” where X chromosome has no trait of long tails find
And the allels of the female are represented by XX, as they do not have long tail fins.
When these two are crossed , the following punnet square is produced
X Y”
X X X X Y”
X X X X Y”
The XX is the female while the XY” is the male offspring.
B. He found similar fossils on different continents that are separated by oceans.
Answer:
Juxtaglomenular is a structure in the kidney which regulates the function of each nephron, the functional units of the kidney. The main function of the juxtaglomerular cells is to secrete renin in response to:
Stimulation of the beta-1 adrenergic receptor
Decrease in renal perfusion pressure (detected directly by the granular cells)
Decrease in NaCl concentration at the macula densa, often due to a decrease in glomerular filtration rate
Explanation:
The juxtaglomerular apparatus is a specialized structure formed by the distal convoluted tubule and the glomerular afferent arteriole. It is located near the vascular pole of the glomerulus and a structure in the kidney that regulates the function of each nephron, the functional units of the kidney.
