Until recently, prokaryotes did not contain linear plasmids or chromosomes, but they have since been discovered in spirochaetes, Gram-positive bacteria, and Gram-negative bacteria. Bacterial linear DNA has been classified into two structural kinds. Each end of linear plasmids from the spirochaete Borrelia has a covalently closed hairpin loop, while each end of linear plasmids from the Gram-positive filamentous Streptomyces has a covalently connected protein. In eukaryotic cells, replicons with comparable structures are more common than in prokaryotes. However, linear genomic architectures are likely more widespread in bacteria than previously thought, and some replicons may be able to switch between circular and linear isomers. The molecular biology of these widely scattered pieces reveals information about the origins of linear DNA in bacteria, including evidence of prokaryote-eukaryotes genetic exchange.
The correct option is this: LAKE VICTORIA HAS A VARIETY OF ENVIRONMENTS SUCH AS ROCKY SHORES AND MUDDY BOTTOMS; THIS ENVIRONMENT HETEROGENEITY PROMOTES SPECIATION.
Biodiversity refers to the variety of plants and animal life in a particular habitat. Biodiversity level can be high or low depending on the number of diverse plants and animals that are found in the habitat. High level of biodiversity is always preferable because of its beneficial effects on the environment.
African Lake Victoria as a water body is made up of different types of environments, therefore, different species of aquatic organisms find it easy to locate favorable niches that are suitable for their existence in the habitat. The high degree of biodiversity will enhance the continuous existence of the lake even during unfavorable conditions.
<span>The three elements of emotions are:
1.Behavior which reveals the feeling to the outside world
2. Inner awareness of feeling
3. Physical arousal
</span><span>The cognitive dissonance for the exhibited behavior is not an element of emotions. </span>
Answer:
These gases are called greenhouse gases.
Explanation:
The glass in a greenhouse has a similar effect on the Sun's rays and so it is called the Greenhouse Effect.
