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aleksandr82 [10.1K]
4 years ago
9

In a simulation they prepared the enzyme disgestion reaction in 4 tubes A+,A-,K+ and K- .what is the difference between the + an

d -
Biology
1 answer:
Reika [66]4 years ago
8 0

Answer:

i nb u ksbhsjhs shhsbsb nsksb s

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What was the first known society?"
Inga [223]

Answer:

Hunting and Gathering

Explanation:

The first humans were nomads who traveled with their food. This means that they would seasonally move across regions hunting the animals there and gathering plants to eat. These people existed before civilization started. Centuries later, these people would develop agriculture and start society. However, the first people were still hunter-gathers.

7 0
3 years ago
Which of the following statements is true about the glycocalyx? Check All That Apply
olga nikolaevna [1]

From the options, the true statements about glycocalyx are : ( 1 ) and ( 3 )

  • All animal cell have a glycocalyx ( 1 )
  • The glycocalyx helps one cell adhere to another ( 3 )

Glycocalyx is a layer of macromolecules  attached to the cell membrane of cells. they perform several functions like protecting the cell from the entrance of pathogens and also providing a medium for cell to cell interaction.

Glycocalyx are found in cells of living organisms, and they are made up of glycosaminoglycans, proteoglycans and glycoproteins as well. hence they are not comprised mostly of proteins.

Hence we can conclude that the true statements about glycocalyx are : All animal cell have a glycocalyx and the glycocalyx helps one cell adhere to another

Learn more : brainly.com/question/24278719

5 0
3 years ago
The diagram shows the transfer of energy. Which statement describes the condition of energy at position 2?
sladkih [1.3K]

The correct answer is (A)

Burning of wood is a chemical change as new substance is formed during the burning of wood which is not reversible.

Now, what happened during the burning of wood?

In the case of burning wood, stored potential energy( in the form of chemical energy) in the log is released due to heating by other excited atoms. This chemical reaction is called combustion that requires oxygen. We can also say that combustion is change of potential chemical energy into kinetic energy in the form of heat.

7 0
4 years ago
Read 2 more answers
Is halite more valuable than gold?
erastova [34]
No, halite is not more valuable than gold
5 0
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How do we know all living things are related
Y_Kistochka [10]

Answer:

We dont i think

Explanation:

4 0
3 years ago
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