Use the punnett square below to answer the following questions r = round ears r= pointy ears 1 how many offspring will have round ears? what percentage of offspring will have 3pointy how many offspring will be carriers of the 4pointy ear based on the allele combination rr, both parents are considered to

0.75

0.26

0.5

Round ears dominant i think

I think for the first square its RR, second square Rr, third square Rr, and the fourth square rr. Usually they use uppercase for the dominant trait and lowercase for recessive so Im assuming number one would be abount 75%? the second one probably around 25% ns tho, Idk the last one But i hope this helps you, have a wonderul day/evening. :)

Increasing the alveolar ventilation rate will increase the partial pressure of oxygen in the alveoli.

Explanation:

Alveolar Ventilation rate is the rate of air flow in the alveoli of the lung during normal breathing. It is measured in milliliters of air per minute (mL/min). The alveolar ventilation rate is an important factor in determining the concentrations (partial pressures) of oxygen and carbon dioxide in the functioning alveoli.

A high rate of alveolar ventilation, would result in a rapid influx of oxygen-rich air and efflux carbon dioxide-filled air from the alveoli.  This ultimately results in an increase in the concentration of oxygen and a decrease in the concentration of carbon dioxide within the alveoli.

Effects of alveolar ventilation on partial pressures of alveolar carbon dioxide and oxygen (PACO₂ and PAO₂)

If the  alveolar ventilation rate is increased (and carbon dioxide production is unchanged), then the partial pressure of carbon dioxide in the alveoli, PACO₂ will decrease.

If the  alveolar ventilation rate increases, then the partial pressure of oxygen in the alveoli, PAO₂ will increase.