Answer:
flat bone
Explanation:
Bones are very hard whitish organs that unite with others through the joints or joints make up the Skeleton. It is a specialized form of connective tissue whose main feature is the mineralization (calcium) of its bone matrix (collagen and proteoglycan fibers). There are several types of bones, of which flat bones are described below.
Flat bones are thin bones and consist of two parallel blades of compact bone tissue, with a layer of cancellous bone between them. Flat bones provide considerable protection and generate large areas for muscle insertion. These are the bones most likely due to muscle fixation in the legs.
False, it doesn’t depend on environmental factors
They increase in number and they are more specialized
The axons of the olfactory sensory neurons project to the olfactory bulb in the brain. This part is found in the forbrain and is responsible for the sense of smell. Inside this bulb are spheres of tissue that are called glomeruli. They are from the ends of branching axons.
Answer:
a. the virus must be able to cross-link red blood cells directly.
Explanation:
Viral hemagglutination assay is a method which is used for the quantification of the relative concentration of the viruses.
The principle on which the hemagglutination assay works is as follows:
- There are sialic acid receptors present on the surface of the red blood cells which will bind to the haemagglutinin glycoprotein present on the surface of the viral particle.
- Due to the binding of the sialic acid receptors with haemagglutinin particle there will be cross-linking of the red blood cells by the viral particles and a lattice formation will take place.
- The lattice will remain suspended in the solution however if the concentration of the virus particles will be less, the lattice will settle down in the well.
Thus, this method allows knowing the relative concentration of the virus.
<em>Due to its basic principle of cross-linking this method works well for only a few viruses such as influenza virus. </em>
