How do birds and dogs both use DNA as instructions for building their bodies even though they are very different organisms?
A. Their DNA has different types of nucleotide bases.
B. Their DNA has different lengths.
C. Their DNA has the same nucleotide bases, but in different
patterns.
D. Their DNA is made of different types of molecules.

Which of the following describes a negative feedback loop? when the heart rate is too high, the body sends hormones that continually increase the heart rate higher. when a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones. when blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows. when a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs.

Aplant with dark red flowers is crossed with a plant with white flowers. all of the offspring have dark red flowers with white spots. the alleles got flower color in this plant are both dominant both recessive codominant incompletely dominant

Forensic scientists think they know the identity of a skeleton. what rule should they use to select a relative whose dna could be used to try to confirm the identity?