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Shtirlitz [24]
3 years ago
11

What are stem cells?

Biology
1 answer:
OlgaM077 [116]3 years ago
6 0

Stem in plants:

Is the movement of material like water and minerals from roots to leaves. And they storage foods.

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When chlorophyll is exposed to green light a galvanometer measures high transmittance, and when chlorophyll is exposed to blue l
Lemur [1.5K]

Answer:

The high transmittance (low absorption) reading indicates that chlorophyll absorbs very little green light.

The low transmittance (high absorption) reading indicates that chlorophyll absorbs most blue light

Explanation:

  • The galvanometer is a device which is used for measuring the electric current.
  • In a spectrophotometer the galvanometer is attached to indicated the amount of light that is getting transmitted through a sample.
  • If the amount of light that is getting transmitted from the sample is more, the reading of the galvanometer would be higher and if less light is transmitted the reading of the galvanometer would be less.
  • Further, the transmittance of a light is inversely proportional to the absorption, that is if the absorption would be low transmittance would be high and vice versa.
  • Therefore, when the chlorophyll is exposed to green light, the transmittance is high and this implies that the absorption of green light would be less.
  • Similarly, when the chlorophyll is exposed to blue light, a low transmittance indicates a higher absorption of blue light by chlorophyll.
8 0
3 years ago
How would there be flooding in the villages is there is a dam in place?
frosja888 [35]
The dam could burst or, if not properly constructed cause water to spill over the sides and top of the dam. Hope this helps.

6 0
3 years ago
Compare the two processes: mitosis and meiosis. Can you identify the the true statements about the two? Meiosis results in four
Alborosie

Answer:

The correct statements are:

  • Meiosis results in four haploid daughter cells.  
  • During meiosis, the 2N mother cells produce N daughter cells.  
  • In both processes, DNA replication must occur.  
  • Mitosis is responsible for genetic continuity; in higher organisms, it is essential for growth and repair.  

Mitosis is a type of cell division in which a parent cell is divided into two identical daughter cells. Each daughter cell contains identical genetic material as that of the parent cell.  

It plays important role in growth and repair of cells and tissues in multi-cellular organisms.

Meiosis is a type of cell division in which a parent cell is divided to produce four daughter cells. Each daughter cell contains exactly half the genetic material (chromosomes) as that of parent cells

It plays important role in the production of gametes (eggs and sperms) in sexually reproducing organisms.

Before either cell division, the DNA is replicated in the S or synthesis phase of the cell cycle.

5 0
3 years ago
Which set of alleles is purebred recessive?<br> A) aa<br> B) Aa<br> C) AA
emmasim [6.3K]

Answer:

aa

Explanation:

the answer is pretty obvious it would be a a because a dominant allele would be to Capitol a and a lower capital a and one capital a would be a mix and a purebred would be to lowercase A's

7 0
2 years ago
Which factor when doubled would produce the greatest change in the centripetal force?
yaroslaw [1]
Let us consider the centripetal force equation,  
centripetal force F = mv² / r  
 f= force
 v= velocity
 m= mass
 r= radius.
 
 in all the factors only velocity has the power of 2. so when you double the velocity then it will become square of that. 
 if v= 2v , F = m4v² / r 
 so velocity is doubled it would produce the greatest change in the centripetal force.
7 0
3 years ago
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