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Ad libitum [116K]
3 years ago
15

Please I need help with questions 56 and 57 and it’s very hard and I’m struggling with it and if you need to see the picture big

then click on it and it will be big

Biology
1 answer:
AlekseyPX3 years ago
7 0
56: It's S, south. Magnets have two poles, right? Opposites attract; likes repel. The two are attracted, therefore it must be S. The other side of the magnet is N, North. 
57. If you push them together, then they will stick together, because of their magnetic attraction.

Please mark brainliest if I helped you. 
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The relative humidity would be ________% if the actual water vapor in the air was 10 grams per cubic meter, the air's capacity t
lys-0071 [83]

Answer: The Relative humidity is 50%

Explanation: Relative humidity is the ratio of the air’s water vapour content (the actual amount of water vapour in the air) to its water vapour capacity at a given temperature. It depends on temperature and the pressure of the system of interest and it is usually expressed in PERCENTAGE; the higher the percentage, the more humid the air/water mixture.

The formula of Relative humidity (%) = (water vapor content / water vapor capacity) x 100%

Where: Water vapour content is the actual amount of water vapour in the air. Which is 10g/cm³ from the question above;

Water vapour capacity is the air's capacity to hold water vapour. Which is 20g/cm³ from the question above.

Therefore, RH(%)= (10g/cm³ / 20g/cm³) x 100 = 0.5 x 100= 50%

This means that the air contains half of the water vapour it could hold at 20 degree Celsius.

5 0
3 years ago
Read 2 more answers
If there was a chain of seven amino acids, how many possibilities are there for different proteins?
Alex17521 [72]
The diversity of proteins is caused by the mRNA codons and DNA. 
DNA has sequences that mRNA finds the pair for (ex. DNA says AGC, RNA says UCG) 
with that, they only come in 3 nucleotide increments. which is a codon 
one you have a codon, it goes thru tRNA to come out with an amino acid and a bunch of amino acids makes a polypeptide or protein 
It all depends on what the DNA's code says to make... 
DNA says AUG, RNA makes that UAC which is the amino acid tyrosine 
did I help?


so basically 7
3 0
4 years ago
What are some of the problems associated with aquaculture?
ch4aika [34]

Answer:

Explanation:

Pollution: The farming of marine fish, crustaceans and even bivalves produces waste in the form of fecal matter and unused feed. These largely nitrogen-based wastes can cause oxygen depletion in coastal environments and a net loss of marine productivity in certain coastal areas.

7 0
3 years ago
. For the following give the mRNA, tRNA and amino acid (a.a.) sequence that will be created:
alexdok [17]
<span>mRNA: UACAUGGCCUUACGCUAA tRNA: AUG UAC CGG AAU GCG AUU a.a: Tyrosine, Methionine, Alanine, Leucine, and Arginine DNA has 4 different bases, they are Adenine (A), cytosine (C), guanine (G), and Thymine (T). RNA also has 4 bases with three of them being identical to the DNA bases and Thymine being replaced with Uracil (U). These bases are generally represented by the 1st letter of their names. Each of the bases will join with a complementary base, so A always pairs with T or U, and C will pair with G. So to create the mRNA, simply replace every A with a U, every C with a G, every G with a C, and finally, every T with a A. So mRNA: UACAUGGCCUUACGCUAA Now for tRNA, there's a slight twist. It only comes in 3 base codons, You won't find a sequence of tRNA other than in 3 base codons. And each of those codons will be uniquely paired with an amino acid. In the ribosomes, the mRNA will be sequentially scanned 3 bases at a time allowing for a matching tRNA sequence to bind to the exposed 3 bases, this will cause the next amino acid to be bound into the protein being constructed. So split the mRNA into 3 base sequences and calculate the complement to get the tRNA. A simple shortcut is to look at the original DNA sequence and simply replace a T bases with U. So tRNA: AUG UAC CGG AAU GCG AUU Notice the spaces every 3rd base. THIS IS REQUIRED. These is no continuous length of tRNA. You'll only find it in 3 base lengths and each of them will be bound with an amino acid. For the amino acid that's coded to the RNA, you'll need to use a lookup table in your text book, or one you can find online. Then it's a simple matter of matching each 3 base sequence to the amino acid. For the sequence given we have: AUG - Tyrosine UAC - Methionine CGG - Alanine AAU - Leucine GCG - Arginine AUU - STOP Notice the AUU doesn't decode to a specific amino acid. It instead indicates to the ribosome to stop the production of the protein. So the amino acid sequence for the originally given DNA sequence is: Tyrosine, Methionine, Alanine, Leucine, and Arginine.</span>
8 0
4 years ago
A yellow powder and a blue liquid are shaken together in a test tube to produce a clear green mixture that is all liquid.which o
elixir [45]

Answer:

They Dissolved / became a compound  

Explanation:

3 0
4 years ago
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