The organism that live in water get oxygen from the oxygen that is dissolved in water.
Oxygen is a gas, that is present 18% in the environment. The oxygen is an important for living beings because all are activities of our body is run by oxygen.
The water also contain oxygen in the dissolved form, which is used by the water organism.
Thus, the oxygen that is dissolved in water.
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Answer:
Most organisms that live in water get oxygen from the dissolved water in the oxygen.
Answer:
893 snakes after first year
Explanation:
total population= 900
death = 30 per year left= 900-30= 870
birth each year= 20 per year so 870 +20= 890 snakes
6 snakes migrate into the population = 890 + 6= 896 snakes
3 migrate out of the population per year = 896-3= 893 snakes
After accounting for annual birth rate, death rate, and net migration, the snake population after one year would be 893 individuals.
To find out how many individuals are in the population after the first year, we start with the initial count of 900 snakes. We then subtract the death rate, or number of snakes dying per year (30), add the birth rate, or number of snakes being born per year (20), then also add the net migration, or difference between snakes moving into and out of the area (6 entering - 3 exiting = 3 net influx).
So the calculation would look like this: 900 (initial population) - 30 (death rate) + 20 (birth rate) + 3 (net migration) = 893
Therefore, after one year, there would be 893 snakes in this population.
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Answer:
i think conversion of mass
Explanation:
Test Tube 6 - Sugar (Sucrose) and Heated Lactase Enzyme: Demetri fills the sixth test tube one-quarter full of sugar. He then adds the heated lactase-and-water solution until the test tube is three-quarters full. He thoroughly mixes the solution and inserts the test strip for 30 seconds. Demetri then records the color of the test strip.
According to the test strips, which of these sugar solutions contained glucose?
None of the sugar solutions contained glucose, and when the glucose strips were put in the sugar, they did not change color.
A test strip is a strip made up of cloth or different types of paper. The strips are used in chemical and biological tests, they turn or change their color, and identify the substance.
Here, the test strip will not show any color, because glucose is not present in any of the solutions as mentioned.
Thus, the glucose strips did not change color when placed in the sugar, and none of the sugar solutions contained glucose.
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Answer:
The roman numerals in blue are the labels I will write below.
Explanation:
i. lone pair of electrons on oxygen atom
ii. covalent bond between oxygen and hydrogen
iii. partial charges that are due to oxygen's high electronegativity. Oxgen will pull the pair of electrons in the covalent bond towards itself and that obtaining a partial negative charge, while hydrogen obtains a partial positive charge.
iv. hydrogen bonds between partially negative oxygen and partially positive hydrogen.
PS. EACH WATER MOLECULE CAN MAKE UP TO 4 HYDROGEN BONDS. ONE WITH EACH HYDROGEN AND TWO FOR EACH ELECTRON LONE PAIR ON OXYGEN. (refer to the middle water molecule in the diagram)
Draw three water molecules and label their parts and interactions, including the hydrogen bond.
Draw three water molecules, each consisting of two hydrogen (H) atoms and one oxygen (O) atom.
Label the parts of each water molecule:
Label the interactions between water molecules:
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The correct answer is H. transcribing information in the DNA sequence for the use by the cell
Explanation
The process shown in the image is DNA transcription, this is the first procedure in gene expression. In this process, the information contained in the DNA sequence is transferred to the protein sequence using various RNAs as intermediaries. During this, DNA sequences are copied to RNA by an enzyme called RNA polymerase that synthesizes messenger RNA (maintains DNA sequence information for the use by the cell), so DNA transcription could also be called messenger RNA synthesis. According to the above, the correct answer is H. Transcribing information in the DNA sequence for the use by the cell.
Answer:
C
Explanation:
Hydrophobic interactions are the result of strong attractions between nonpolar regions and are crucial in biological phenomenon such as protein folding and cell membrane structure. The correct option is D.
Hydrophobic interactions often occur between nonpolar molecules or groups. The correct statement among those provided is D: hydrophobic interactions are the result of strong attractions between nonpolar regions.
These interactions do not require the presence of surrounding water molecules, nor do they result from maximizing contact with water. Instead, nonpolar molecules or groups tend to gather together, or aggregate, to minimize their exposure to water or any other polar substances.
This is because there is a natural repulsion between polar and nonpolar substances. Thus, hydrophobic interactions are critical for the folding and stability of proteins, cell membrane structure, and many other biological phenomena. The correct option is D.
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