Answer:
The correct answer would be solid = low; liquid = medium; gas = high.
Matter generally exists in one out of three states: solid, liquid or gas.
Solid: The particles of solids are closely packed. They have least kinetic energy as compared to the particles of liquid and gas. They have definite shape and volume i.e. they do not change shape and volume according to the container they are put in.
Liquid: The particles of liquid are loosely packed and thus they have higher kinetic energy as compared to the particles of solid state. They have definite volume however, they can change shape according to the vessel they are stored in.
Gas: The particles of the gas have highest distance among them as compared to the other states of matter. So, they have the maximum kinetic energy as compared to that of others. Gas has no definite shape and volume.
- Now, foam balls will show minimum movement when dryer speed is at low thus, they represent the particles of solid.
- Similarly, at high speed of dryer the foam balls will show the maximum movement and thus will posses the maximum kinetic energy. So, we can conclude that at high speed of dryer they act like particles of gas.
- Similarly, at medium speed foam balls will act as particles of liquid.
Answer:
- The three roles of RNA in protein synthesis. Messenger RNA (mRNA) is translated into protein by the joint action of transfer RNA (tRNA) and the ribosome, which is composed of numerous proteins and two major ribosomal RNA (rRNA) molecules. ... Ribosomal RNA (rRNA) associates with a set of proteins to form ribosomes.
2. Each molecule of DNA is a double helix formed from two complementary strands of nucleotides held together by hydrogen bonds between G-C and A-T base pairs.
Explanation:
The first one is for How do the three types of RNA work together to create proteins
And the second is for using the genetic information contained within DNA?
What causes smog in L.A. and in Mexico City? Describe at least factors.
The smog is trapped in the valley and cannot be carried away by wind.
Describe one change to factories and power plants intended to reduce air pollution.
Reducing toxic emissions from industrial sources, reducing emissions from vehicles and engines through new stringent emission standards and cleaner burning gasoline; and addressing indoor air pollution though voluntary programs.
Describe one change to automobiles and buses intended to reduce air pollution.
Using fuel efficient vehicles, or electric vehicles.
Describe one way that commuters can now reduce air pollution.
Choose a cleaner commute, share a ride to work or use public transportation. Combine errands and reduce trips. Walk to errands when possible. Avoid excessive idling of your automobile.
Answer:
Please find the explanation below
Explanation:
The lac operon is a unit containing structural genes and a single promoter in bacteria such as E.coli. A repressed gene is a gene in which the expression has been inhibited or prevented from occuring.
In E.coli, the lac operon contains three structural genes viz: lacZ, lacY and lacA, that codes for proteins capable of degrading lactose sugar for energy purposes. In the presence of lactose, the expression (transcription and translation) of these three lac genes occur normally.
However, in a scenario where lactose is absent in the bacterial cell, the expression of the lac gene in the lac operon is inhibited. This inhibition/repression is done by LAC REPRESSOR, which is a transcription factor/protein that binds to the OPERATOR region of the lac operon and prevents RNA polymerase (transcription enzyme) from binding to the PROMOTER region.
Once RNA polymerase is prevented from binding to the promoter, transcription (gene expression) does not occur. Hence, in the absence of lactose sugar, the lac operon is a repressed gene.
Stanley Miller showed how enzymes could have formed inorganically.