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vlada-n [284]
2 years ago
8

The first or smallest level of organization in the human body is the​

Biology
2 answers:
Dimas [21]2 years ago
8 0

Answer:

chemicals

Explanation:

Olin [163]2 years ago
6 0

Answer:

chemicals

Explanation:

it goes from chemicals to cells to tissues to organs to organ tissues and then organism

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What are the different structures and functions of roots?
seraphim [82]

Different structures and functions of roots

Explanation:

Roots are the underground descending non-green part of the plant.

Root functions: Anchorages the plant to the soil, absorbs water and nutrients from the soil.

Characteristics: Positively geotropic and hydrotropic, negatively phototropic; does not have nodes, internodes or stems.

Types:  

  • Tap root
  • Adventitious root – fibrous, foliar and true adventitious roots

Structure and functions:  

  • Root cap or Calyptra: Cap-like structure covering the root tip .
  1. Function: protects the meristematic tissues of the root, secretes mucilage which enhances the root tips to grow into the hard soil.
  • Meristematic zone or growing point  sub-terminal behind root cap. These cells are inverted and looks like a dome.
  1. Function – helps in the root growth by adding new cells to the root tip and other basal regions
  • Zone of elongation behind the meristematic zone.
  1. Function – helps in elongation of the root
  • Root hair zone: This is the zone of differentiation where cells differentiate into vascular tissues like phloem, xylem, endodermis, cortex etc.
  1. The main function of root hair is to increase the total surface area of root to facilitate more absorption of water and other nutrients from the soil
  • Zone of maturation: the major and mature portion of a root.
  1. Function  - lateral roots originates from this zone and radial differentiation leads to secondary growth.  
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3 years ago
Ethanol has been shown to slow down the body's use of fat for fuel by as much as ________, causing more fat to be stored.
Goryan [66]
Ethanol has been shown to slow down the body's use of fat for fuel by as much as a third, causing more fat to be stored.   (or 33%)

God bless!
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Neptune is approximately 30 Astronomical Units (AU) away from the Sun. If you decided to create a scale model of the solar syste
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C. 75cm for sun and neptune :)




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Which is most likely the result of a diet high in sugars and fats?
svetlana [45]
A - diabetes hope this help
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