<span> sunlight, little water, air, rock these are some :)</span>
hi I just need brainliest answer
I think good insulator
49; Number of Electrons = Number of Protons = Atomic Number
Answer:
When the sun, moon and earth are at right angles, this is called a neap tide.
When the sun, moon, and earth are parrallel to each other, this is called a spring tide.
Explanation:
There are two types of tides spring tide and neap tide.
A spring tide occurs when the sun and moon are parallel to each other. This usually happens during periods of full and new moon, which are the moments that the moon can form a straight line with the sun, causing the gravitational force to interfere with the tide.
The neap tide, on the other hand, happens when the sun, moon and earth are at right angles. This moment occurs between the waxing and waning moons, where the sun and moon are at right angles and the earth is used as a vertex of that angle. In this type of tide the gravity of the sun becomes more influential than that of the moon.
Answer:
a. repressor
b. regulator
c. operator
Explanation:
All constituent genes of an operon are transcribed in a coordinated manner, such as polycistronic mRNA, that is, multigenic, which is sequentially translated into proteins by ribosomes. The initiation of transcription can be regulated positively or negatively. The genes under negative control are constantly expressed unless they are "disconnected" by a repressor protein that will prevent gene expression by binding to a specific DNA sequence called operator, preventing RNA polymerase from initiating transcription in the promoter.
Those genes whose expression is under positive control will not be transcribed unless an activating protein is present which binds to a specific DNA sequence and helps RNA polymerase in the initial steps of transcription.