The Ozone Layer prevents Ultraviolet rays (from the Sun) from reaching Earth.
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The correct answer is hydrogen bonds.
Snottite is a product of extremophilic bacteria which hang from the walls and ceilings of caves and are similar to stalactites, but have the consistency of nasal mucus.The main component of snottite is a sulphuric acid which is a waste product of bacteria.
Answer:
C. Plants
Explanation:
Plants are living organisms. Sunlight, water and soil, on the other hand, are not.
Answer:
Positively charged ions
Explanation:
Histones are a group of proteins with a N-terminal end of an amino acid, that binds to the DNA in the nucleus helping it to condense into Chromatin. DNA wraps around a core of proteins to initially form the NUCLEOSO ME structure, which is the basic subunit of Chromatin. Each nucleosome is made up of DNA coiled around two copies (2) of proteins- H2A, H2B, H3 and H4, to form a set of eight proteins called histone octamer.
Due to the phosphate group (PO4-) embedded in the DNA molecule, they assume a negative charge. The positively charged ions of the N(C) terminal end of histones which arise from the amino acid group they contain allows it to bind tightly to negatively charged DNA i.e. the more positively and negatively charged the histone and DNA are respectively, the tighter the binding.
Due to this property, the proteins that binds to DNA in E.coli, should possess a positive charge in similarity to histones in eukaryotes.
Answer:
Muscles - skeletal, smooth, and cardiac.
Location
Skeletal - This is located between bones.
Smooth - walls of hollow visceral organs ( such as the liver, pancreas, and intestines.)
Cardiac - the heart.
Explanation:
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