Answer:
Any factor in the environment that does not depend on the number of members in a population.
Explanation:
Density independent limiting factors also cause population sizes to increase. For example, the water from a flash flood increases the growth of vegetation, thereby providing more food for primary consumers in the ecosystem.
Answer:
The answer is "B: They both involve duplicating chromosomes'
Explanation:
Answer:
Examples of environmental factors that may alter salivary peroxidase include periodontitis, oral hygiene, presence of heavy metal ions, bacteria (e.g., <em>Streptococcus gordonii</em>), anaerobic conditions, temperature, pH, etc.
Explanation:
Peroxidase is an enzyme found in all aerobic cells that act to convert toxic hydrogen peroxide (H2O2) into dioxygen (O2) and water (H2O). This enzyme plays an important non-specific defensive role against proliferating micro-organisms that cause periodontal diseases such as periodontitis, which is a serious inflammatory disease affecting the tissues around the teeth. The most common environmental factors influencing the development of periodontitis include oral hygiene, smoking and age. In this regard, it has recently been shown that there is a positive correlation between salivary peroxidase activity and periodontal health, especially in non-smoker individuals. In consequence, it is expected that smoker individuals are more prone to suffer periodontal diseases by reduction of the salivary peroxidase levels.
Answer: Kaylan
Explanation: Pesticides can contaminate soil, water, turf, and other vegetation. In addition to killing insects or weeds, pesticides can be toxic to a host of other organisms including birds, fish, beneficial insects, and non-target plants. Which makes it harmful towards the environment.
Answer:
The Ti plasmid is used as a vector for the transfer of genes in the plants. They are known to cause the crown gall disease in the plants. They have important economic value.
The transformation of the plant require the removal of tumor inducing gene for the formation of the disarmed pathogen. The gene of interest is kept in between the right and left border of the transfer DNA. This DNA is then introduced in the Agrobacterium. Then, it is cultivated with the target cells like callus so that the DNA can intgrate in the cells. The transformed cells are grown in a particular plants.
