The answer is B. All plant cells have cell walls while animal cells do not.
Ans.
Sickle cell anemia is defined as a genetically inherited disorder that causes deformation of red blood cells (RBCs) and inadequate oxygen transport. It is caused by a mutation in the gene that encodes for hemoglobin and leads to formation of a defective protein.
The RBCs transport oxygen to the various parts of body with the help of hemoglobin molecules. Due to defective hemoglobin, blood cells become sticky and rigid, and shape like sickles. The resulting sickle-shaped cells get stuck in blood capillaries that block or slow down blood flow or oxygen transport to the body organs.
Thus, 'sickle cell anemia affects oxygen transport in the body.'
Bald eagles have excellent eye sight. This adaptation helps them to find food.
They have long, sharp claws. This adaptation helps them catch and hold onto fish. They have curved beaks. This helps them to tear open the skin of their prey. They also have very few predators so this helps them to adapt and start their population.
Answer:
The answer to this question is D.
Explanation:
This is because it was affected by the wind because sand is very light. ALso, I already learned this stuff so I am kind of an expert ngl.
Answer:
#Mitral valves
There is a valve at the meeting point between each ureter and the bladder to prevent the backflow of urine into the kidneys.
Urinary reflux means that one (or both) of these valves is not working properly.
If you have urinary reflux, during urination the urine travels up the affected ureter to the kidney instead of flowing out of the body.
Urinary reflux most commonly occurs in babies and children.
In most cases, the valve will correct itself as a child grows and matures.
In severe cases, surgery may be needed to remodel the valve.
#Urine flows from each kidney through tubes called ureters and into the bladder. When the bladder is full, it squeezes and sends the urine out through the urethra. No urine should flow back into the ureter when the bladder is squeezing. Each ureter has a one-way valve where it enters the bladder that prevents urine from flowing back up the ureter.
