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juin [17]
3 years ago
14

An idea that is supported by some evidence, but is not yet the basis for a field of study is called

Biology
1 answer:
Tanya [424]3 years ago
6 0
A theory is not proven as fact
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Which organelle is not found in plant cells ? Vacuoles mitochondria chloroplasts centrioles
Andru [333]
Answer: D) Centrioles

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Centrioles are only found in animal cells and they help during cell division. They organize the spindle fibers that help elongate the cell and separate the chromosomes.
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almond37 [142]

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Give an example of a decomposed. Explain what would happen if decomposers were absent from a forest ecosystem.
DerKrebs [107]

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Some examples of decomposers include bacteria, fungi, and some insects. If decomposers disappeared from a forest ecosystem, wastes as well as the remains of the dead organisms would pile up, and producers (plants) would not have enough nutrients.

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3 years ago
Choose the CORRECT statement concerning the cell membrane lipid molecules
VashaNatasha [74]

Answer:

The correct statement concerning the cell membrane lipid molecules is that "energy is not expended during diffusion" (Option d)

Explanation:

Biological membranes are formed by two lipidic layers arranged with their hydrophilic polar heads facing the exterior and the interior of the cells, and their hydrophobic tails against each other. Membranes are fluid, which means that molecules that form it have the capability to move through it.  

Lipids can easily change places with other neighbor lipids by <u>lateral diffusion</u> in the same layer. This is passive diffusion, which means that it does not need energy to happen.

Lipids can also diffuse transversally to the other layer, but this kind of movement is not as easy as lateral diffusion.

There are also other lipidic movements as rotational diffusion that imply the rotation of the molecule.

Through this lipidic bilayer, there is also a passive transport of some particles from one side of the cell to the other which happens because of concentration differences.

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3 years ago
Why is heat death the most likely option?
Angelina_Jolie [31]
It is because it may happen more often than others and can do more damage quicker.
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2 years ago
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