What is the effect of sickle-cell anemia?
a. Blocked respiratory pathways.
b. Decreased neurological functions.
c. Inefficient oxygen transportation.
d. Susceptibility to contracting malaria.

Option C.

Inefficient oxygen transportation .

Explanation:

Sickle cell anaemia is an inheritable condition in which the the red blood cell cannot transport oxygen effeciently in the blood to organs because of it's distorted shape which is sickle.

Red blood cells function in transporting oxygen in the blood because of it's iron component, when it is distorted it can't carry oxygen efficiently.

This can lead to damage to lungs, livers, nerves, spleens, organs.

primary succession begins with a bare rock and ends with a forest secondary succession begins after a natural disaster where there is a temporary setback after a forest fire or local destruction, but the surrounding area can fill in

the answer is: metamorphic rocks often show the presence of fossils, also a

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-lavira: )