Answer:
1. Atmosphere and ecosystem
2. Carbon/CO2 is absorbed by the plants and then released as oxygen.
3. Carbon is used in the cellular respiration process to make ATP.
4. Decomposers break down dead material and release CO2 in that process into the atmosphere for plants to use that carbon for photosynthesis again.
Highlighted structure is median nerve cord only.
It originates from brachial plexus from medial and lateral cords. Lateral wire best medial and lateral cords lateral and posterior cords medial cord handiest.
The medial twine is the a part of the brachial plexus fashioned with the aid of of the anterior department of the lower trunk (C8-T1). Its name comes from it being medial to the axillary artery as it passes through the axilla. the opposite cords of the brachial plexus are the posterior cord and lateral cord.
The lateral cord gives rise to the lateral pectoral nerve. The posterior wire offers upward push to the higher subscapular nerve, thoracodorsal nerve and decrease subscapular nerve. The medial wire offers upward thrust to the medial pectoral nerve, medial cutaneous nerve of the arm and medial cutaneous nerve of the forearm.
The posterior cord is part of the brachial plexus. It includes contributions from all the roots of the brachial plexus. Posterior twine. Plan of brachial plexus.
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If the inducer [allolactose] is present in the negative control then it will bind to the repressor decreasing its ability to bind to the operator due to which the transcription begins again and the operon is turned on.
Lac Operon is a set of three genes z, y & a which are regulated under the same promoter which regulates the amount of lactose production in the cell.
An inducer is a molecule that has the ability to induce or activate the operon. ex- in the case of the lac operon, allolactose acts as an inducer.
A repressor is a molecule that will repress or restricts the transcription of the genes of the operon, as a result, the operon will be switched off.
When the lac operon is under negative control, with no CAP [catabolite repressor protein] binding activity, the repressor remains active and thus binds to the operator region of the operon, as a result, no transcription takes place and the operon will be switched off.
But if the inducer will be present even in the negative control then the transcription takes place and the operon will be on.
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Answer:
Temperature is usually uniform throughout a cell (Ans. C)
Explanation:
Heat or thermal energy is a kinetic energy. That is connected with the random movements present in the atoms. Temperature is usually uniform throughout the cell so the most cell can not harness heat to perform work.
Heat is a type of energy which is transfer from one body to another body due to the temperature difference.
It can only perform work if it is transferred from one source which is warmer to a body which is cooler. The temperature in living organisms is usually kept very constant due to the process of homeostasis.
