Select the correct statement about the three-chambered hearts of amphibians and nonbird reptiles.

The three-chambered heart is inferior to the four-chambered hearts of birds and mammals, limiting the evolutionary success of amphibians and nonbird reptiles.
The three-chambered hearts of amphibians and nonbird reptiles are facultative, allowing variation in blood flow through the heart.
Pulmonary and systemic blood fully mixes in the ventricle of a three-chambered heart.

a chair, a bed, and a toothbrush

explanation:

i was told this before by a teacher, so yeah

b because they naturally adapt to their environment plz mark brainliest

explanation:

in addition to spreading humanist ideas, erasmus has contributed to criticism of corruption in the church.

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides