Answer:
They are called covalent bonds.
Explanation:
I just went through the lesson.
Answer:
Nitrogenous bases known as Glutamine, Thymine, Adenine, and Cytosine.
excretory system: removes waste from blood.
respiratory system: obtains oxygen so the energy in the nutrients can be extracted.
circulatory system: transports nutrients from small intestine to the othet tissues.
nervous system: regulates and controls digestive functioning.
( Am not completly sure, but i think this is the answer)
TT or Tt because even though the second letter is not dominant the first one is greater
