Answer:
<em>The correct option is D) The four nitrogen bases of DNA combine is threes to produce only 20 amino acids.</em>
Explanation:
Our DNA is made up of four nucleotide bases. The genetic codon can produce 20 different amino acids based on the sequence. The genetic code which codes for a certain amino acid remains the same for all types of organisms whether be prokaryotes, animals or plants. Hence, the genetic code is considered universal as the four nitrogen bases combine to form only the 20 different amino acids in all types of organisms alive.
Answer:
tbh in my opinion i dont know if its right i think its 26%
Explanation:
Answer:
A) action and myosin sliding past each other and partially overlapping
Explanation:
The muscle contraction occurs by the interaction between two protein filaments in sarcomeres (actin and myosin). During this process there is a “shortening” of the sarcomere, caused not by changing the length of the actin and myosin filaments, but by overlapping these filaments,
The alkalinity as CaCO3 in mg/L is 108,23
<h3>What is alkalinity?</h3>
Alkalinity is the total measure of substances present in water, capable of neutralizing acids. In other words, it is the amount of substances present in the water that act as a buffer.
With that being said;
Equivalent weight = {molar mass}*{ion charge/oxidation number}
- Molar mass of HCO3- = 61g/mol
- Molar mass of CO3 = 60g/mol
- Molar mass of CaCO3 = 100g/mol
- Eq. cot. of HCO3- = 61g/Eq
- Eq. cot. of CO3 = 30g/Eq
- Eq. cot. of CaCO3 = 50g/Eq
Alkalinity due to CO3 = {32x50}{30} = 53.33mg/L
Alkalinity due to HCO3- = {56x50}{61} = 54,90mg/L
Total Alkalinity = 53,33 + 54,90 = 108,23 mg/L
In this case, we have to The alkalinity as CaCO3 in mg/L is 108,23 mg/L
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<span>-Chloroplasts:
Chloroplasts are the plant cell's "energy power plant" as well as
mitochondria- they are involved in photosynthesis, making food and
energy for the cell.
-Cell walls: Cell walls are rigid layers around the cell membrane. They
are made of cellulose and help maintain the cell's shape and prevent it
from swelling too much.
One organelle only in animal cells:
-Centrioles: Centrioles are structures that make spindle fibers for the movement of chromosomes in mitosis.
A different organelle:
-Vacuoles:
In plant cells, the vacuole is called a "central vacuole". The central
vacuole is a large "balloon" that holds water, nutrients, ions, trash,
etc. for the cell.
In animal cells, there are numerous smaller vacuoles. They have the same function. </span>