Rhinoviruses and herpes simplex are just two common viruses out of the other thousands of them that the immune system has to protect the body against.
B) is the correct answer. The flu virus does not have the same genetic makeup each year as with each individual it infects its rapidly mutating.
Answer:
they got black dot on their white wings.
Explanation:
And black pepper moths dont but they are natural selected from the white pepper moths.
There are three main regions of the kidney.
<span>1.Renal cortex - It is the outer region of the kidney which contains the renal corpuscles and the renal tubules (without the loop of Henle). It produces the erythropoietin.</span>
<span>2.Renal medulla - It is the innermost part of the kidney which contains the renal pyramids.</span>
<span>3.Renal pelvis - It is the region that collects urine from the nephrons, thus it contains the place where ureter leaves the kidney.</span>
The soon to be male organism, developing from the zygote, receives or inherits the X chromosome from his mother. His father provides him the y chromosome, the smaller of the 2 sex chromosomes.