Tall pea plants are dominant over short pea plants. can a short pea plant ever be produced from crossing two tall pea plants?
a. no, only short pea plants can produce short pea plants because it is a recessive trait
b. no, short pea plants are a different type of pea plant and could never be the offspring of tall pea plants.
c. yes, two heterozygous tall plants could produce short pea plants.
d. yes, two homozygous tall pea plants could produce short pea plants.

b. read the phase at the intersection of any given temperature and pressure.

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.

in the initial assessment of breathing, signs of respiratory distress must be noted (if present), such as the use of accessory muscles for breathing, abdominal breathing and grunting respiration. next, respiratory rate must be observed. increasing breathing rate may be a sign of sickness.