The nitrogenous bases form hydrogen bonds between opposing DNA strands to form the rungs of the "twisted ladder" or double helix of DNA or a biological catalyst that is found in the nucleotides. Adenine is always paired with thymine, and guanine is always paired with cytosine. These are known as base pairs.
Answer:
Evolution
Explanation:
Evolution – change over time. It is the process by which modern organisms have descended from ancient organisms. Current scientific facts, observations and hypotheses all combine to create current evolutionary theory – which is a well-supported, testable explanation of the biological diversity on Earth.
Birds, just like humans, have a four-chambered heart.
Chromosomes are the homologous chromosomes that cross over
Answer:
this is an example of a positive acceleration because Paul is speeding up not slowing down
Explanation:
