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Oxana [17]
2 years ago
9

The gene that codes for gastrin is located on the _____ of chromosome 17.

Biology
1 answer:
Mnenie [13.5K]2 years ago
3 0
I believe it's the long arm of chromosome 17.
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On a global scale, energy _____ ecosystems whereas chemical elements _____ ecosystems. see concept 55.1 (page 1237) on a global
Kay [80]
<span>The choices for this question are:
</span>-is biologically magnified in ... are recycled in
-is dissipated in ... flow through
-flows through ... are recycled in
-is continuously supplied to ... are continuously removed from
<span>-is recycled in ... flow through</span><span>

On a global scale, energy flows through ecosystems whereas chemical elements are recycle in ecosystems. So the answer is the third option. 

Energy flows through the ecosystem. Most energy comes from sunlight and it is transformed into chemical energy by autotrophs. When they are consumed by heterotrophs the energy is passed on, until it dissipates as heat.  
</span><span>
Chemical elements like carbon and nitrogen, on the other hand, are cycled between biotic and abiotic factors in an ecosystem. This is not possible for energy. These chemical elements come from abiotic factors like the air, light and soil. They are incorporated in the biomass of the photosynthetic organisms and are consumed by other organisms. They are changed back into their inorganic form when the organism dies and are broken down by decomposers and the cycle goes on. So they are constantly being recycled. 

In summary, energy needs a continuous source to be able to maintain and sustain the energy flow in the ecosystem. Chemical elements, on the other hand, are just recycled through processes between abiotic factors and biotic factors. </span>
8 0
1 year ago
The almost pure cellulose obtained from the seed threads of Gossypium (cotton) is tough, fibrous, and completely insoluble in wa
olga55 [171]

Answer:

Cellulose is held by beta 1,4-glycosidic bonds making it linear while Glycogen is held by an alpha 1,4-glycosidic bond making it highly branched.

Explanation:

Cellulose and Glycogen are both carbohydrate polysaccharides formed from glucose monomers. According to the question, cellulose is a tough, fibrous, and insoluble (in water) polymer found to play a structural role in plants' cell wall while Glycogen is another polymer obtained from muscle or liver and disperses readily in hot water to make a turbid solution.

Although these two polysaccharides (cellulose and glycogen) are linked by (1, 4)-glycosidic bonds but the glucose monomers in CELLULOSE are linked by a beta 1,4-glycosidic, hence, making it a straight or linear polymer

GLYCOGEN, on the other hand, is linked by an alpha 1,4-glycosidic bond making it an highly branched polymer. This structure is responsible for the different physical properties of the two molecules.

6 0
2 years ago
Trinna and Suzanne are identical twins who were the same length at birth. They were adopted by different families at birth and t
denis-greek [22]

Answer:

The best method of investigation that a scientist can use in an investigation of twins separated at birth - as in the case of Trinna and Suzanne - is a case study.

Explanation:

The case study is a qualitative research strategy that can be used in both biology, psychology and sociology, even combining these disciplines. Take an observed phenomenon, sometimes unique, looking for an explanation based on the examination and the elaboration of hypotheses.

Trinna, despite being an identical twin, developed a shorter stature and habits different from Suzanne, probably due to her growth in different environments.

The objective of the case study would be to demonstrate how the growth of twins in different settings may have caused physical and cultural differences in these identical twins.

Learn more:

Case study brainly.com/question/5167644

5 0
2 years ago
What part of the sarcolemma contains acetylcholine receptors?
Kisachek [45]
Acetylcholine receptors<span> are embedded in the </span>sarcolemma<span> at neuromuscular junctions. A neuromuscular junction is where a motor neuron makes contact with a muscle fiber. The </span>sarcolemma<span> is the cell membrane of a muscle cell.</span>
6 0
2 years ago
Read 2 more answers
Suppose you are a researcher in an influenza lab and your team has uncovered four strains that have evolved changes from last ye
goldfiish [28.3K]

Answer:

Please see attachment

Explanation:

Please see attachment

4 0
1 year ago
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