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vovangra [49]
3 years ago
11

Please solve all of question 20

Biology
1 answer:
Musya8 [376]3 years ago
6 0

Answer:

use ur textbook

Explanation:

it says use it

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One of the major lessons learned from the efforts to conserve green sea turtles in the Philippines is
shusha [124]

Answer:

''if we protect the nature, the nature will protect ourselves''.

Explanation:

Major lesson that is learned from the efforts to conserve green sea turtles in the Philippines is ''if we protect the nature, the nature will protect ourselves''. green sea turtles are very important for our environment because it provides nutrients in order to grow dune vegetation such as beach grasses, which help to prevent coastal erosion and maintain the structure of dunes present on the beach.

4 0
2 years ago
Name one source of human stem cells ,other than human embryos
11Alexandr11 [23.1K]
Hello There!

It is from adult bone marrow.

Hope This Helps You!
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- Hannah ❤
8 0
3 years ago
What are the human system​
professor190 [17]

Answer:

The human system is a complicated living organism that is structured of internal and external organs and fluids. It has the heart, liver, kidneys, stomach, large and small intestines, brain, and skin.  

8 0
2 years ago
Name the four things that can happen to move carbon from a plant and return it to the atmosphere
kvv77 [185]

1. Respiration-process by which plants release CO, while they break down the sugar

2. Animals eat plants- They break down sugars and starches by a process of metabolism and the products are energy water, and CO2 molecules.

3. Decomposition-when plants die, their parts (wood, leaves) decay bringing the carbon into the ground

4. Root respiration- respiration that occurs in roots, adds to soil respiration (the amount of CO2 produced through root respiration is determined by the root biomass ).

5 0
3 years ago
Making changes to the secondary structure of hair has a different outcome than making changes to its tertiary or quaternary stru
DanielleElmas [232]

The outcome differs in the way that the protein folds itself at each level. The changes in the way that it folds lead to:

modifications in the function, shape or in the combination with other proteins.

Protein has different levels of structure. Each of them is related to how the amino acids and other molecules interact with each other. Hair is made of proteins, so if one of the structures is affected, the hair is too.

Let's analyse what happens in each level of structure:

  • In the case of the primary structure, which is the sequence of amino acids, the modification will give a non-functional protein that will not fold into the following structural level. So, there won't be new hair.
  • For the secondary structure, a modification here can lead to a different folding. In other words, it can change from an α helix to a β pleated sheet or the other way round. This will give a different shape to the hair, like curly or straight.
  • A modification in the tertiary structure modifies the interaction of the R groups in the protein, so the three-dimensional structure that this interaction gives will change, giving a different type of hair.
  • Lastly, if we modify the quaternary structure, the protein won't interact with some proteins, but it may interact with others.

In conclusion, the modification of the secondary structure changes the interaction between the elements of the protein giving hair with different shapes.

Learn more at:

brainly.com/question/1548720?referrer=searchResults

7 0
2 years ago
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