Haploid because during meiosis one cell divides twice to for four daughter cells.
A phase change is when matter changes into another form but keeps its properties
Answer:
1. Sympathetic input increases ventricular contractility, thereby increasing stroke volume.
2. Sympathetic input decreases conduction time within the heart, decreasing the delay between atrial and ventricular contractions.
3. Sympathetic input increases the speed of ventricular contraction.
Answer:
A
Explanation:
Proteins are formed by amino acids which are linked together.
Evidence of the past life preserved in rocks . This overlap of dna suggested we all derived from a common ancestor
