Answer:
The correct answer will be option-A.
Explanation:
Lac operon is a set of genes arranged sequentially for lactose metabolism in E.coli. The lac operon gets activated in the presence of lactose as the lac operon consists of three enzyme coding genes called lacZ which codes for the β-galactosidase enzyme, lacY which codes for lactose permease, lacA which codes for acetyltransferase along with a regulatory gene called lacI which codes for repressor proteins.
The repressor proteins bind to the operator and control the transcription. When it binds to operator its huts off the transcription. If a mutation occurs in the laci gene then the protein will lose the machinery which will turn off the activity of enzymes and will lead to the constitutive expression of the genes irrespective of the inducer present or not.
Thus, option-A is the correct answer.
Answer:
The caterpillars gain energy directly from the orchids
Explanation:
Earth maintains the flow of nutrients in the form of cycles and linear sequence in which the nutrients in the form of matter and energy flows from one organism to another and one sphere to another sphere.
One such flow of nutrients in the form of matter and energy can be observed in the organisms when one organism feed upon another and gain energy.
This flow of matter and energy is called a food chain.
The energy flows in this food chain through ten percent rule which states that only ten percent of energy can be transferred to next trophic level, therefore, the organism at the lowest level will have the highest amount of energy.
In the given question, the caterpillars can be considered as primary consumers which gain energy from the orchid plants directly and thus is the most appropriate answer.
Quartz can produce energy. It is used to power watchs and many other items too
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.
Hope this helped!!!XD
Can I get brainliest please?
Wuthering Heights shares literary elements with Frankenstein. These novels belong to the literary genre known as B. gothic.
Although Frankenstein can also be classified as a horror novel, Wuthering Heights cannot. It is also not a fantasy or a legend.
