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Tomtit [17]
3 years ago
7

What is the function of the part that is labeled A?

Biology
2 answers:
PtichkaEL [24]3 years ago
6 0
I would say the answer is A. moistens and filters incoming air.
inn [45]3 years ago
4 0

Answer: Option A

Explanation: The label A represents the nasal passage which is the passage from where the air enters the body.

This passage contains mucus membrane that helps to moisten the incoming air from the outer environment for the process of inspiration.

The moistening of the incoming air is necessary for the removal of the dirt and harmful substances that should not enter the lungs. The main function is to filter the air and then allow it to move further.

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Advantages/disadvantages involved in methods of reproduction of a jelly fish
Scrat [10]
Advantages <span>sexually by releasing sperm and eggs into the water, forming a planula the bad part is its babys can get eaten and hurt easily </span>
7 0
3 years ago
The structure of the cell membrane allows it to be selectively permeable. What is the name for the larger, brown structure in th
Anika [276]

Explanation:

B) protein channel

Lipids are composed of fatty acids which form the hydrobic tail and glycerol which forms the hydrophilic head; glycerol is a 3-Carbon alcohol which is water soluble, while the fatty acid tail is a long chain hydrocarbon (hydrogens attached to a carbon backone) with up to 36 carbons.

Their polarity or arrangement can give these non-polar macromolecules hydrophilic and hydrophobic properties. Via <em>diffusion,</em> small water molecules can move across the phospholipid bilayer acts as a semi-permeable membrane into the extracellular fluid or the cytoplasm which are both hydrophilic and contain large concentrations of polar water molecules or other water-soluble compounds. The hydrophilic heads of the bilayer are attracted to water while their water-repellent hydrophobic tails face towards each other- allowing molecules of water to diffuse across the membrane along the concentration gradient.

Transmembrane proteins are embedded within the membrane from the extracellular fluid to the cytoplasm, and are sometimes attached to glycoproteins (proteins attached to carbohydrates) which function as cell surface markers. Carrier proteins and channel proteins are the two major classes of membrane transport proteins.

  • Carrier proteins (also called carriers, permeases, or transporters) bind the specific solute to be transported and undergo a series of conformational changes to transfer the bound solute across the membrane. Transport proteins spanning the plasma membrane facilitate the movement of ions and other complex, polar molecules  which are typically prevented from moving across the membrane.
  • Channel proteins which are pores filled with water versus enabling charged molecules to diffuse across the membrane,  from regions of high concentration to regions of lower concentration. This is a passive part of facilitated diffusion

Learn more about membrane components at brainly.com/question/1971706

Learn more about plasma membrane transport at brainly.com/question/11410881

#LearnWithBrainly

4 0
3 years ago
Which answer choice BEST supports the idea that the Scientific Revolution questioned the established ways that Europeans underst
UNO [17]
The answer is d is the answer
3 0
3 years ago
When carbon is in the atmosphere, it’s usually in the form of molecules of ..., which is a ....
Lorico [155]

Answer:

Carbon Dioxide / Gas

Explanation:

When carbon is in the atmosphere it is usually in the form of molecules of carbon dioxide that is released by living organisms such as humans, plants, animals etc and it is a gas.

I hope this answer helps.

3 0
2 years ago
PLEASE HELP ME
Svetradugi [14.3K]
The daughter cells are produced with only half the chromosomes of the parent cell. The correct option among all the options given in the question is option "D". So the main goal of meiosis is actually creating four daughter cells that are by no means similar to the parent cells. When these daughter cells that are created combine together and undergo the process of fertilization, then a zygote is formed and the development of cells starts. The process of meiosis can be asexual as well as sexual.


5 0
3 years ago
Read 2 more answers
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