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rewona [7]
3 years ago
8

What is the function of the primary and secondary pharyngeal bars in Amphioxus?

Biology
1 answer:
viktelen [127]3 years ago
5 0

Answer:

In Branchiostoma, it is used mainly for feeding. The pharynx consists of numerous pharyngeal bars, with pharyngeal slits between them. The animal sucks in water through its mouth and forces it out through the pharyngeal slits, capturing small food particles from the water

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How do i solve this monohybrid cross
trapecia [35]

Homozygous recessive: tt

Heterozygous: Tt

Cross:

          t          t

T      Tt         Tt

t       tt           tt

Thus, the expected outcome genotypic ratio is:

1 Tt : 1 tt

5 0
3 years ago
the chemicals in cigarette smokers are known to cause cancer propose a series of steps that could lead to the development of lun
Aleks [24]

Answer:

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Explanation:

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3 years ago
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nalin [4]
A. Evolution

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8 0
3 years ago
Why plant cell does not burst even if placed constantly in hypotonic solution?
lubasha [3.4K]

Answer:

Explanation:

It's simply law of osmosis.

In osmosis solvent particles move from lower solute concentration to higher solute concentration until both the solution acquire the same concentration. So when a plant cell is kept in hypertonic solution (having more solute concentration), the solvent particles move outside the cell causing it to shrink, which is also known as plasmolysis of cell.

When a plant cell is kept in hypotonic solution (having less solute concentration), the solvent particles move inside the cell causing it to swell up which is also known as deplasmolysis. But due to the presence of cell wall, plant cell can not burst. Cell wall is a very stratchable boundary made up of cellulose mainly which makes the plant cell non-collapsable (but animal cells can burst in hypotonic solution due to absence of cell wall)

Have a great day!!!!!!!!

5 0
4 years ago
Is a warn away statue chemical or mechanical weathering
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If the statue is like Lady Liberty, and overgoes a change in color and state. For example, she was originally copper, but later changed into patina due to weather such as acid rain, it is mechanical weathering. Please let me know if this helped.
6 0
3 years ago
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