The principle of dominance states that
a. all alleles are dominant.
b. all alleles are recessive.
c. some alleles are dominant and others are recessive.
d. alleles are neither dominant nor recessive.

some alleles are dominant and others are recessive

Explanation:

The principle of dominance states that some alleles are dominant and others are recessive. Alleles are alternative forms of a gene controlling a particular characteristic. Dominant allele are expressed phenotypically in the hybrid homozygous or heterozygous state. Recessive alleles are expressed phenotypically only in the homozygous condition.

other quantities, called derived quantities, are defined in terms of the seven base quantities via a system of quantity equations. the si derived unitsfor these derived quantities are obtained from these equations and the seven si base units.

ans.

in united states (us), the first leading cause of death for both women and men is heart diseases that leads to more than half of the deaths. heart diseases develop due to narrow arteries, buildup of plaque in blood capillaries that arises difficulties in blood flow.

the second leading cause of deaths in us is cancer that affects individuals of all ages. it develops due to uncontrolled growth and spread of tumor cells, which results in death if the not controlled or treated.

the third leading cause of deaths in us is copd or chronic obstructive pulmonary disease. it includes difficulty in breathing, chest infections, and persistent cough. smocking is a leading cause of copd and around 80% of copd deaths occur due to smoking.

thus, the correct answer is 'option). cancer, copd, and heart disease.'