If the recessive alleler is lethal, what genotypes will natural selection benefit?

а. RR and Rr

b. RR only

c. Rr and ir

d. R only

yay can i have brainliest

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

a. 35°c

b. 25°c

c. 10°c

d. 40°c