Answer:
Option A, most closely related to mammals
Explanation:
Insects like arthropods and molluscs have an open circulatory system and thus do have a distinguishable heart. Fish has two chambered heart. Reptiles have three chambered heart. Amphibians too have a three chambered heart.
All mammals and fish have four chambered heart. The right and left sides of the chambers have restricted entry and hence remain intact from each other
Hence, option A is correct
In fact, there are bacteria that grow in all kinds of pH, from the most acidic to the bad alkaline. Depending on the pH at which they live, bacteria can be classified as neutrophil, acidophilic and alkalineophilic.
But in general, when we talk about bacteria that are present in foods, they tend to grow in a pH range between 5 and 9, so they are considered as <u>neutrophil</u>. This can vary by species and other factors such as temperature and available nutrients.
Answer: Options A, B, C and D are correct.
Explanation: They can trigger the activity of histone acetyltransferases.
These RNAs functions by binding to histone-modifying complexes, to DNA binding proteins (including transcription factors), and even to RNA polymerase II.
They can silence genes by promoting the formation of euchromatin by arranging hetero- or euchromatic regions into close proximity may stabilize these domains or it may control the spreading of post-translational modifications (PTMs) to nearest chromatin.
They are actively involved in X chromosome inactivation.
They can regulate the translation and stability of mRNAs.
In Eukaryotic cells RNA transcription is a closely regulated process. Transcription of a lncRNA may regulate the transcription of nearby mRNA genes, either positively (maintaining active chromatin structure) or negatively (for example, colliding polymerases). In these cases, the RNA product may have no importance at all, or it could have an additional function.
Vegetation controls water and nutrient loss from ecological lesson can we learn from the controlled experiment on the clearing of forests.
<h3>
What about clearing of forest?</h3>
- Deforestation is the intentional clearing of wooded land.
- Forests have been cleared throughout history and into the present era to make room for agriculture and animal grazing as well as to obtain wood for fuel, manufacture, and construction.
- Deforestation has dramatically altered the landscape all around the planet.
- The process of permanently removing vegetation, such as trees and bushes, together with their roots, is known as clearing woods and forests.
- There are both direct and indirect causes of deforestation.
- Natural factors including storms, fires, parasites, and floods are among the direct culprits.
- Human activities include the extension of agriculture, the raising of livestock, the extraction of timber, oil, and minerals, the building of dams, and the development of infrastructure.
Learn more about clearing of forest here:
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