Answer:
b. aggregate abnormally to form fibers and cannot adequately carry oxygen
Explanation:
The sickle cell hemoglobin is an abnormal form of hemoglobin. As the sickle cell hemoglobin release oxygen to the interstitial fluid, it forms long, stiff, and rod-like fibers. These aggregates of hemoglobin tend to bend the erythrocyte into a sickle shape. The sickled erythrocytes rupture easily and do not move easily through blood vessels. Sickled cells tend to stick together and form clumps which in turn cause blockages in blood vessels. Therefore, the presence of sickle cell hemoglobin adversely affects the ability of RBCs to carry oxygen.
I believe this would be the correct order:
1) A receptor detects a signal.
2) A sensory neuron sends a signal to the spinal cord.
3) A relay neuron sends a signal to a motor neuron.
4) A muscle receives a signal to contract.
5) A bone moves.
A signal will be picked up by a sensory neuron and sent to the spinal cord (Central Nervous System). The signal will then be sent to a motor neuron in the Peripheral Nervous System to find a muscle. That muscle is signaled to contract which then will cause a bone to move.
Atoms are able to slide past one another in the liquid matter stage.
Answer: D
Explanation:
Could RNA have provided a template for DNA assembly, thereby enabling a more stable molecule that is replicated more accurately?
Heart and lungs works hand in hand. Not only that they are close to each other but they also work to make sure that body gets enough oxygen that it needs to live. It is the heart that pumps blood through the body it passes through the lungs. then it is the job of the lungs to supply oxygen together with the blood that heart pumps.
