Answer:
Explanation:
Heterochromatin in terms of accessible of the cell's machinery is termed as the region whereby the nucleosomes are tightly packed toghether such that the cell's transcriptional machinery is unable to access this regions. Examples of regions where this is found is at the centromeres, the telomeres and some other few regions in the chromosomes.
Euchromatin in terms of accessibility is the region wherein the nucleosomes are loosely packed such that the cellular processes machines is able to get access to the DNA.
The cell makes DNA in highly compatible state accessible by understood some epigenetic mechanisms such as modification of the histone tails. An example is acetylation; this allows addition of an acetyl group to specific regions on the tail of particular histones that allows for the unwrapping of the history from the DNA making them accessible. This is carried out by some enzymes known as histone acetyltransferases (HATs). Another example is phosphorylation: this does the same as acetylation.
Answer:Which is an adaptation?
Adaptation is the evolutionary process where an organism becomes better suited to its habitat. This process takes place over many generations. It is one of the basic phenomena of biology. ... Adaptation occurs because the better adapted animals are the most likely to survive, and to reproduce successfully.
What are the benefits of biodiversity to humans?
A healthy biodiversity provides a number of natural services for everyone:
Ecosystem services, such as. Protection of water resources. Soils formation and protection. ...
Biological resources, such as. Food. Medicinal resources and pharmaceutical drugs. ...
Social benefits, such as. Research, education and monitoring.Adaptation involves coping not only with the physical abiotic environment (light, dark, temperature, water, wind), but also with the complex biotic environment (other organisms such as mates, competitors, parasites, predators, and escape tactics of prey).
Explanation:
Answer: Decomposition in pools, ponds, and lakes takes place mostly in the benthic zone.
Explanation:
Answer:
2 invasive species
Explanation:
If one species over grows the other there would be little to no genetic diversity. :)