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FromTheMoon [43]
3 years ago
9

. What organ is able to extract dissolved oxygen from water?

Biology
2 answers:
MrRissso [65]3 years ago
8 0
The organ that living things such as fish use to extract dissolved oxygen from water are the gills. As land animals and humans don't have gills, we can't breath underwater and take in the oxygen from that source.
777dan777 [17]3 years ago
7 0
Fish, sea slugs, and all underwater animals have organs called gills which allow them to extract dissolved oxygen from the water and therefore 'breathe' and live underwater.
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Recall that two hydrogen bonds bind A and T, but three hydrogen bonds bind G and C. Because the stability of DNA is affected by
IrinaK [193]

Answer:

A molecule with 32 percent or more amount of Cytosine.

Explanation:

DNA is the genetic material of all the living organism but in few viruses, RNA can also acts as the genetic material. DNA contain nitrogenous bases ( adenine, guanine, thymine and cytosine), deoxyribose pentose sugar and the phosphate bond.

The triple bond is more stable than the double bond. Since, cytosine and guanine shows triple hydrogen bonding and shows more stability. The DNA molecule that contains more residues of guanine and cytosine is stable than the molecule containing adenine and thymine residues.

Thus, the answer is molecule with 32 percent or more amount of Cytosine.

8 0
3 years ago
Insects have three pairs of legs or are ________ arthropods
AleksAgata [21]
Answer is thorax...

Hope it helps you...
5 0
2 years ago
11. Who suggested that peppered moths were an example of natural selection?
weeeeeb [17]

Answer:

J. W. Tutt suggested that peppered moths were an example of natural selection.

Explanation: Before industrial revolution, the population of white peppered moth is high as compared to dark peppered moth because white peppered moth can't be seen at night by the birds. After industrial revolution, sooth is spread on the surface of the trees which make easy for the bird to see white peppered moth and feeds on them. Population of white peppered moth decreases while the population of dark peppered moth increased because they cannot be seen in the dark due to black color of sooth.

3 0
2 years ago
The bone from which a skeletal muscle begins is called its origin. <br> a.true <br> b.fals
Gre4nikov [31]
This is true. it is called origin.
6 0
3 years ago
A small branch of the optic nerve, known as the ____ path extends directly from the retina to the scn.
svetoff [14.1K]

Answer;

Retinohypothalamic path


A small branch of the optic nerve, known as the retinohypothalamic path extends directly from the retina to the SCN.


Explanation;

The SCN is an abbreviations for suprachiasmatic nucleus or nuclei; which is a region in the hypothalamus. that is responsible for controlling circadian rhythms.

Retinohypothalamic path is a neural input pathway that extends directly from the retina to the SCN.


7 0
2 years ago
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