Answer:
b
Explanation:
The R in RNA stands for Ribosomes which are proteins.
Answer:
D
Explanation:
there are around as many bacteria cells as there are human cells in the human body.
<span>The correct statement is letter C. All arteries except the pulmonary artery carry oxygen-rich blood. Most arteries are responsible for the delivery of oxygen and nutrients to all cells and the pulmonary veins are the one who transfer oxygenated blood from the lungs to the heart.</span>
Answer:
B
Explanation:
Valleys are created by streams of running water
Answer:
notochord, a dorsal hollow nerve cord and pharyngeal slits.