Answer:
Osteon
Explanation:
Bone tissue may be of two types; compact bone tissue that form the outer hard covering of bones and spongy bone tissue that form inner soft portion of bone. Osteon are found in compact bone.
Osteons are cylindrical structures composed from clustre of Osteocytes and layers of extracellular matrix around a central canal connected by canaliculi for the transportation of blood. The haversian canal is surrounded by lamella that comprises the osteon. Osteons run parallel to long axis of bones and present in bones of many mammals, reptiles and birds. In some bones the stress or pressure in applied from few directions and osteons are aligned in that direction so they provide protection from bone bending or fracturing from compressive forces.
A new nucleotide can only be added to the 3' end of a growing dna strand. dna therefore always grows in the 5' to 3' direction.
Define nucleotide.
Nucleotides are organic molecules made up of a phosphate and a nucleoside. They serve as monomeric units of the essential biomolecules found in all life forms on Earth, deoxyribonucleic acid(DNA) and ribonucleic acid polymers.
Define DNA.
Deoxyribonucleic acid(DNA) is a polymer made of two polynucleotide chains that coil around one another to form a double helix and which contains the genetic material necessary for all known creatures, including many viruses, to develop, function, grow, and reproduce. Nucleic acids include DNA and ribonucleic acid.
Learn more about DNA here:-
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Answer:
It maintains body temperature by absorbing energy
Explanation:
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Answer:
For a scientific hypothesis to be useful, it must be a
<u>testable</u> explanation of facts
Explanation:
In the scientific method, the hypothesis represents the starting point of all research, where the observation of a phenomenon is followed by a possible explanation that must be measured and proven.
It is important that the hypothesis presents defined, specific and real variables, and there must be the possibility of test it and have the necessary tools for this purpose.
Regarding other options:
<em> A. Provable
: the probability of a hypothesis implies that it may or may not be true.</em>
<em> B. Widely accepted
: the explanation that provides a hypothesis needs to be demonstrated through experiments in order to be accepted.</em>
<em> C. Correct: the hypothesis will not be correct until it has been tested.</em>
