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murzikaleks [220]
3 years ago
11

Taste molecules are unique because different molecules trigger _______ in the nose and mouth

Biology
1 answer:
beks73 [17]3 years ago
5 0

Answer:

sensation

Explanation:

sensation provides the taste to the brain

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You are given two solutions containing different purified DNAs. One is from the bacterium P. aeruginosa and has a G + C composit
bonufazy [111]

Answer:

The solution of P. aeruginosa will yield higher Tm value.

Explanation:

The solution of P.aeruginosa contain 68% G+C composition as a result the DNA of P.aeruginosa is more stable than the DNA of mammal contain only 42% G+C composition.G+C composition is most stable because guanine is linked to cytosine by 3 hydrogen bonds whereas adenine linked to thymine by 2 hydrogen bonds.

   As  P.aeruginosa DNA is more stable than mammalian DNA,as a result the DNA solution of P.aeruginosa will yield high Tm(melting temperature) value than that of mammalian DNA.

4 0
3 years ago
1. The burning of fossil fuels contributes to all of the following ecological problems except for:
kirill115 [55]

The burning of fossil fuels does not contribute to ozone layer depletion.

The burning of fossil fuels leads to the release of gases such as oxides of nitrogen, sulfur, and carbon as well as particulate matter such as smoke, ashes, etc.

The oxides released from fossil fuel burning can cause global warming (carbon dioxide), acid rain (SO2), and air pollution (particulate matter).

Ozone layer depletion is caused by pollutants such as halocarbons, solvents, etc.

More on ozone layer depletion can be found here: brainly.com/question/1285852?referrer=searchResults

3 0
2 years ago
In a piece of hemoglobin beta chain,how might u look to see an mrna in Ecoli?
hodyreva [135]

Answer:

Hemoglobin is responsible for binding and transporting oxygen in the body. It is a tetrameric protein that is found in high concentration in red blood cells (erythrocytes, red blood cells). Each hemoglobin molecule is made up of four subunits: two of the alpha type and two of the beta type, and each subunit can bind an oxygen molecule through its heme group.

Structure studies have shown that hemoglobin can adopt two conformations, called T (tense) and R (relaxed). Deoxyhemoglobin (in blue) is in state T, and the union of oxygen (in red) causes the transition to state R. The animation shows a close view of the heme group (in white, balls and rods) of one of the subunits of hemoglobin. In the deoxygenated state (T), the iron atom is not coplanar with the rest of the heme group due to its association with the histidine side chain. The union of oxygen displaces the iron atom so that it remains coplanar with the rest of the heme group, which in turn drags histidine, producing a larger-scale conformational change that affects the entire protein.

Hemoglobin can be considered as a tetramer formed by two alpha-beta dimers. The conformational change associated with the transition from T to R mainly affects the relative position of these two dimers (rather than the interactions between the alpha and beta subunits within a dimer). This is illustrated in the last stretch of the animation (drawn in black and white).

5 0
3 years ago
Why is it important for blood to travel to the small intestines?
guapka [62]

Answer:

Intestinal blood flow is critical for digestion, as well as a key element of overall well-being. The O2 consumption of the small intestine is more  controlled than is the large.

Explanation:

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3 years ago
Which of the following terms describes all of the non-living components of an ecosystem
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Abiotic: which are the non-living factors and chemicals in environments which can affect the ecosystem.

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