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sashaice [31]
2 years ago
6

Why are photsynthetic aquatic and marine protists important to ecosystems

Biology
1 answer:
-BARSIC- [3]2 years ago
7 0
Protists and their products are essential, indirectly and directly in photosynthesis because they help organisms through their survival and ranging from bacteria to mammals. Protists feed tons of the worlds aquatic animals and species and they do not only create food but they also provide sources for sea dwelling organisms
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Liula [17]

Answer:

1. A  2.B  3.B 4.C 6.A 7.B 8.C 9.D

Explanation:

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Why do the navajo associate the tips of the fingers with the trail of the wind?
kozerog [31]
Allegedly, <span>the finger tips show where the wind blew when our ancestors were created. In a way, their fingertips are roots to their ancestors, so touching them somehow links them to their ancestors. And as you probably know, the Navajo are very much connected to their ancestors, and tribes in general. </span>
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What organelles help the nucleus do its job?
shepuryov [24]
Endoplasmic Reticulum. -- Transport System. Golgi Apparatus -- Delivery System. Lysosomes - Intracellular Digestion Centers. Ribosomes - Sites of Protein Synthesis. ENERGY RELATED ORGANELLES. Cytoskeleton - Support System. Related to Movement.
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Respiration involves the breakdown of sugar. This process results in the production of energy for the cell. In order for cells t
riadik2000 [5.3K]
The answer is oxygen.
8 0
3 years ago
Read 2 more answers
Help asap please!
andreyandreev [35.5K]

Answer:

Active transport:

  • requires energy
  • molecules move from low to high concentration sides
  • Na+ and K+ move by active transport

Simple diffusion:

  • molecules move from high to low concentration sides
  • molecules pass between lipids
  • small non-polar and polar molecules

Facilitated diffusion:

  • molecules move from high to low concentration sides
  • involves channel proteins
  • move large molecules

Explanation:  

  • Simple Diffusion is the pathway of only small molecules that freely move through the membrane by momentary openings produced by the lipids' movements. Diffusion is a slow process that requires short distances and pronounced concentration gradients to be efficient. An example of diffusion is osmosis by which water is the transported molecule.
  • Facilitated diffusion is the transport of hydrophilic molecules that can not freely cross the membrane. Channel protein and many carrier proteins are in charge of this transport. When uncharged molecules cross the membrane, they do it according to their concentration gradients, going from the more concentrated side to the lower concentrated one. When ions need to cross the membrane, the process depends on an electrochemical gradient.  Glucose is an example of a hydrophilic protein that gets into the cell by facilitated diffusion.

Simple diffusion and facilitated diffusion are both passive transport processes because they only depend on electrochemical gradients, so they do not need any energy to occur.

  • Active transport is the transport of molecules that move against the electrochemical gradient, so it does need energy to happen. Molecules move from the lower concentration side to the higher concentration side of the membrane. Carrier proteins are in charge of active transport. The needed energy might proceed from the ATP molecules or the membrane's electric potential. An example of molecules moved by active transport are the Na and K.

7 0
2 years ago
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