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posledela
4 years ago
11

Which of the following is most important to the heartbeat?

Biology
1 answer:
Dmitry [639]4 years ago
3 0
B. Sinoatrial nobe is the most important
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predict one parent is heterozygous for a recessive genetic disorder, and the other parent is homozygous for the dominant allele.
GarryVolchara [31]
None of them are likely to express the recessive trait because they all have a dominate allele in their genotype. 2 of them will be homozygous dominant, but two of them will be heterozygous and carriers for the disease.
8 0
3 years ago
List the cell organelles involved in energy generation for the cell.
kompoz [17]

Answer:

Mitochondria are tiny organelles inside cells that are involved in releasing energy from food. This process is known as cellular respiration. It is for this reason that mitochondria are often referred to as the powerhouses of the cell.

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3 years ago
Imagine these two elements, element A and element B are solids. The two elements are poured into a beaker and mixed. Illustrate
Kryger [21]

Chromatography is a simple technique in principle, it remains the most important method for the separation of mixtures into its components. It is quite versatile for it can be used to separate mixtures of solids.

Explanation:

  • The two elements of chromatography are the stationary phase and the mobile phase. There are many choices of stationary phases, some being alumina, silica, and even paper.  The mobile phase, in liquid chromatography, can also vary.  It is often either a solvent or a mixture of solvents and is often referred to as the eluant.
  • A careful choice of eluting solvent helps to make the separation more successful.  The mixture is placed on the stationary phase.  The eluant passes over the mixture and continues to pass through the stationary phase carrying along the components of the mixture.
  • Chromatography is used in industrial processes to purify chemicals, test for trace amounts of substances, separate chiral compounds and test products for quality control. Chromatography is the physical process by which complex mixtures are separated or analyzed.
  • Chromatography is based on the principle where molecules in mixture applied onto the surface or into the solid, and fluid stationary phase (stable phase) is separating from each other while moving with the aid of a mobile phase

3 0
3 years ago
Amino acids can undergo dehydration synthesis reaction to form larger molecules called
Kaylis [27]

Answer:

Dehydration Synthesis

The monomers combine with each other via covalent bonds to form larger molecules known as polymers. In doing so, monomers release water molecules as byproducts.

3 0
3 years ago
All cells contain a phosphate buffer system within their internal fluid to help maintain a constant pH. This system can be summa
Sloan [31]
The correct answer is A. maintaining homeostasis.
Homeostasis is a term referring to an organisms continuous process of maintaining and auto-regulating the conditions of its internal environment. Variables such as pH, temperature, and fluid balance need to be at optimal conditions in order for the organism to function properly.
In this example, the phosphate buffer system permits the organisms to maintain a constant pH in their intracellular fluid. This is one of the organism's homeostatic mechanisms.     

3 0
3 years ago
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