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9966 [12]
3 years ago
12

The nervous system is the major _____________ system of the organism.

Biology
1 answer:
zhenek [66]3 years ago
6 0

Answer:

control, command, etc.

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What tissue has lacunae, calcium salts, and blood vessels? Select one: a. fibrocartilaginous tissue b. areolar tissue c. bone (o
kipiarov [429]

Answer:

c. bone (osseous tissue)

Explanation:

The extracellular matrix of the bone tissue consists of an organic component and an inorganic component.

The organic component includes Collagen , proteoglycans and glycoprotiens, While the inorganic component contains calcium and phopsphorus. The cells are present in the lacunae situated betwen the lamellae and contain a number of oblong spaces.

It also contains blood vessels as a typical long bons is supplied by a nutrient artery , periosteal vessels and epiphyseal arteries.

Hence C is the right answer.

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3 years ago
Plzzzzzzzzzzzzzzzzzzzzzzzzzzz help i only need help with B everything eles i can do my self
Nina [5.8K]

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I believe that it is the lettuce.

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it is the fist thing in the graph so it is the start/producer of the chain.

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Lumps of iron and manganese ore called ________ can be harvested from the seafloor near underwater volcanoes.
arlik [135]

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polymetallic nodules

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A young adult is exposed to a virus that infects and replicates in mucosal epithelial cells of the upper respiratory tract. One
marishachu [46]

Answer:

The CTL has specific receptors that can recognize infected or damaged cells.

Explanation:

The cytotoxic T cells (CTL) is a type of white blood cells that specifically helps in destroying virus-infected cells (also damaged cells and cancer cells).

This type of cells has a special receptor called T-cells receptors (TCR) which ones recognize specific antigens (molecule that stimulate the immune systems because are “strange” to them). Virus inside a cell could bind to a special molecule called class I MHC, this molecule moves the virus to the surface of the cell where it can be recognized by a CD8+ specific antigen-receptor of the CTL.

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