Answer:
Nucleus
Explanation:
Prokaryotes are the organism that came earlier than eukaryotes on this earth. These prokaryotes do not have a nucleus and other membrane-bound organelles like chloroplast, mitochondria, Golgi apparatus, endoplasmic reticulum, etc.
So as prokaryotes lack membrane-bound organelle their genetic material is not enclosed in the nucleus therefore their genetic material remains in the cytoplasm of the cell while eukaryotes have membrane-bound nucleus in which their genetic material are present.
So the nucleus is the major organelle that prokaryotes are missing that eukaryotes have.
Ectoparasites cause diseases in humans and animals, so to know the format of detecting it we need to know that ......
<h3>Ectoparasite</h3><h3 />
Parasitism is defined as an interaction where a parasitic organism obtains resources through one or several host individuals, causing damage and reducing its fitness. The endoparasite is a type of parasite that lives inside the host's body (from the Greek endos, inside), while the ectoparasite is one that lives on the external surface of its host (from the Greek ectos, outside). Thus, the ectoparasite does not need to lodge inside the host organism to feed, presenting a partial metabolic dependence. Some examples of ectoparasites are:
<h3>Strategies of ectoparasites</h3>
Each parasite has particular strategies and adaptations used to extract nutrients from their hosts. In ectoparasites these adaptations can often be seen as changes in the oral apparatus, allowing them to penetrate the skin surface and feed on the host's nutrients. Scabies is a skin disease caused by the ectoparasite <em>Sarcoptes scabiei</em>. In order to obtain nutrients for its survival, the parasitic organism burrows into the skin of the host, unlike ectoparasites such as the louse, which pierce the surface and only insert its mouthparts to extract food.
<u>With this information we can say that the </u><u>ectoparasites </u><u>adapt to the host so that it is </u><u>not noticed </u><u>and for a better </u><u>absorption of nutrients </u><u>from the host, they remain </u><u>undetectable</u><u> not to be </u><u>removed</u><u>, so that they are not </u><u>disconnected</u><u> from their </u><u>food source</u><u> as they are in the vast majority visible to the eye.</u>
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What’s the rest of the question??
what are your options?
normally, the average adult human body (with a weight between 150 and 180lbs) holds 4.7 to 5.5 liters of blood.
Answer:
C) is prevented due to growth-inhibiting proteins of oligodendrocytes
Explanation:
Oligodendrocytes are the neuroglial cell and mainly serve to support neurons. These cells also produce a myelin sheath around axons of neurons of the central nervous system. Axons in the CNS display little regrowth or neurogenesis. Inhibition of regeneration is due to several factors such as the absence of a neurolemma and an inhibitory influence of the oligodendrocytes on axon regrowth. For the purpose, the oligodendrocytes produce growth-inhibiting proteins. Axons in the CNS are myelinated by oligodendrocytes and this myelin is one of the inhibiting factors in the regeneration of neurons.