How does the allele that causes sickle cell disease also confer a benefit to humans? A. Mosquitos that bite people with sickle cell disease also contract the disease and die.
B. People with both copies of the sickle cell allele have sickle cell disease but are resistant to typhoid.
C. People with only a single copy of the sickle cell allele do not have sickle cell disease and are also resistant to the parasite that causes
malaria.
D. People with the sickle cell allele have more offspring on average.

If these are the missing choices: a. to determine skin temperature, place the back of your hand against the patient's skin.b. determine body temperature by touching the patient's hands and feet.c. skin temperature will tell you very little about this patient's condition or well-being.d. the patient's skin temperature and color will likely be warm and red.my answer is: a. to determine skin temperature, place the back of your hand against the patient's skin. using the back of the hand to check for temperature rather than the palm is more effective because the back of the hand has more nerves that can feel and transmit the temperature than the palm.

Idk i think the answer choice is number 1

The answer is d i think