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horsena [70]
3 years ago
5

What part of your brain controls all mental activities?

Biology
1 answer:
Angelina_Jolie [31]3 years ago
3 0

Answer:

cerebrum

Explanation:

cerebrum controls reading, thinking, learning, speech and emotions

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When is the lac operon most active?
Vera_Pavlovna [14]

Answer: The correct answer to the question is option WHEN GLUCOSE LEVELS ARE LOW AND LACTOSE IS PRESENT.

Explanation: To start with,Lac operon can be simply defined as a part of the DNA that is under the part of the DNA is manipulated and controlled by the same promoter,they can be found in some prokaryotic cells giving room for regulation over excess synthesis of protein.so simply put,these specific segment of the DNA binds with the segment of the polymerase of RNA so that transcription of the mRNA from the operon genes will be achieved.

Lac operon is also known as lactose operon, it is seen in some enteric bacteria like e.coli where they play a crucial role in coding of genes for those proteins that function in moving lactose into the cystocel and digesting it to form glucose that is used for energy generation. These lac operon are are most active when glucose levels are low and lactose is present,with the low level of glucose, the lac operon can be transcribed to a high level,this is to ascertain that the bacteria only gets to activate the lac operon and can only make use of it,that is using lactose when all the preferred energy source from glucose has been exhausted.

6 0
3 years ago
Which process is a "build up" process? ______________________________________ which process is a "break down" process? _________
RSB [31]
Which process is a "build up" process? ___anabolism___

which process is a "break down" process? ___catabolism___

photosynthesis occurs in __the chloroplasts__

cellular respiration occurs in __the mitochondria__
7 0
3 years ago
Does all dna code for protein?
irina [24]

Answer:

Only about 5% of human DNA encodes protein.

Explanation:

Arrayed along the DNA strand are the genes, specific regions whose sequences carry the genetic code for making specific proteins. The genes of bacteria are tightly packed together; virtually all the DNA encodes proteins.

4 0
3 years ago
This is any multicelluar living thing that obtains energy from sunlight or makes its own food
Anika [276]

Answer:

yeah there is

Explanation:

plants are multicellular organisms that make food from sunlight

7 0
3 years ago
Which of these is a method of obtaining oil? A. Tar sands extraction B. Coal mining C. Surface mining D. Underground mining
hodyreva [135]

Tar Sands Extraction!! (APEX)

8 0
3 years ago
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