According to the second law of thermodynamics, energy is never 100% efficient because some of the energy disperses as heat.
Answer: D.
The E. reticulum and Golgi bodies are concerned with secretion and synthesis of molecular substances e.g protein , lipids and steroid. Therefore these cellular organelles should contain Plasma B cells and Islets of Langerhans. for protein hormone synthesis(insulin) and antibodies production
Explanation:
III only (floods and drought) is an example of density-independent factor affecting population growth.
<h3>WHAT IS DENSITY-INDEPENDENT FACTOR?</h3>
Certain factors affect the growth and multiplication of living organisms in populations. These factors can either be;
- Density-dependent
- Density-independent
Density-independent factors are those factors that are not dependent on the density of the population to affect them. These factors are usually physical factors of the environment like;
- Disasters
- Flood and drought
- Earthquake etc.
Therefore, III only (floods and drought) is an example of density-independent factor affecting population growth.
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These are the five steps in genetic engineering.
- locating and obtaining the DNA of an organism with a particular trait.
- cloning the gene responsible for the phenotype.
- creating a gene with a particular expression pattern.
- transformation, which involves introducing the gene into a crop plant's cells.
- Transgene into a background with affluence.
In the process of genetic engineering, DNA extraction comes first. This is achieved by taking a sample of bacteria that contains the desired gene and subjecting it to a series of procedures that isolate DNA from other components of the cell.
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The answer is D.
Tertiary consumers eat primary and secondary consumers. Therefore, carnivores that eat other carnivores are called tertiary consumers. An example of primary consumers are rabbits and giraffes. An example of secondary consumers are snakes and rats.
