Answer:
Antibiotics is no a pathogen
Answer:
What did researchers learn from terra preta?... Because terra preta is loaded with so-called bio-char -- similar to charcoal -- it also can pull substantial amounts of carbon out of the increasing levels of carbon dioxide in the Earth's atmosphere, helping to prevent global warming.
How is bio-char different from the traditional Amazonian method of creating terra preta? Terra preta owes its characteristic black color to its weathered charcoal content, and was made by adding a mixture of charcoal, bone, broken pottery, compost and manure to the low fertility Amazonian soil. ... Terra preta soils were created by farming communities between 450 BCE and 950 CE..
The BBC's Unnatural Histories presented evidence that the Amazon rainforest, rather than being a pristine wilderness, has been shaped by man for at least 11,000 years through practices such as forest gardening and terra preta.
There are water-tight junctions between cells in the stomach, so that no HCl can leak out of the stomach into the abdomen, which are tight junctions.
Option E
Explanation:
The tight junctions are the water tight sealing boundaries through which the content of the stomach do not cross the epithelial lining of the stomach and neither do the outer fluid crosses the epithelial lining inside of it.
The tight junction is established via claudins, which are protein molecules by constituents. They are present in the cell and they pair up with the claudin molecule present on the adjoining or opposite claudin of the other cell, forming branch like tight network.
Both mitochondria and ribosome are so tiny structure, it can not be seen under light microscope. It needs more magnification to study the detail structure, hence electron microscope is best to use.
<h3>What is ribosome ?</h3>
Ribosomes are small membrane less organelles and are the sites of protein synthesis.
It is present in are found in both eukaryotic and prokaryotic cells.
Ribosomes can either be present alone or in groups in cytoplasm while some ribosomes are attached to the endoplasmic reticulum called as rough endoplasmic reticulum.
These are composed of ribosomal protein and RNA, have two subunit larger and smaller subunit.
Learn more about ribosome, here:
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Answer:
The correct answer is -The cells exhibit different patterns of gene expression.
Explanation:
The genome of a particular cell lies in its DNA sequence the information to show gene expressions which means that they make thousands of various proteins and RNA.
A cell generally expresses only a low ratio of its genes, and the various types of cells in organisms with a multicellular body system arise because various sets of genes are expressed.
Thus, the correct answer is -The cells exhibit different patterns of gene expression.