Your answer is nitrogen fixing bacteria
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All things are made of cells (both algae and daisies are made of cells)
All cells come from pre-existing cells (both bacteria and horse cells had cells that made their cells)
Cells are the smallest unit of life (nothing is smaller than cells not grass cells or fungi cells)
Answer:
The bell of the stethoscope is used during auscultation to listen for low pitched sounds typical of a heart murmur.
Explanation:
Auscultation is a diagnostic test that listens to sounds from the heart, lungs, bowels, the circulatory system and other parts of the human body.
The stethoscope is an instrument that is designed for auscultation.
The diaphragm of the stethoscope listens for high pitched sounds typical of the bowels, a normal heart, and breathing.
The bell of the stethoscope listens for low pitched sounds typical of a heart murmur.
Answer:
B. Base pairing occurs within an RNA molecule to give RNA the three-dimensional shape needed for specific functions.
Explanation:
Ribonucleic acid, known as RNA, is a type of nucleic acid found in living systems. In opposition to the other type of nucleic acid (DNA), RNA is a short single stranded molecule. Both DNA and RNA are made of nucleotides, composed of a phosphate group, nitrogenous bases and a pentose sugar.
The presence of ribose sugar and Uracil base in RNA instead of deoxyribose sugar and thymine base respectively structurally differentiates the molecule from DNA. However, base pairing occurs within the RNA molecule to form the three-dimensional shape of the RNA, which is key to the specificity of its function.
