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masha68 [24]
3 years ago
15

elements are made up of atoms which contain two particles in the nucleus and eletrons orbit around what

Biology
1 answer:
Klio2033 [76]3 years ago
4 0

Answer:

An atom is composed of two regions: the nucleus, which is in the center of the atom and contains protons and neutrons, and the outer region of the atom, which holds its electrons in orbit around the nucleus.

Explanation:

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An operon is controlled by a repressor. When the repressor binds to a small molecule, it binds to DNA near the operon. The opero
larisa [96]

Answer:

Negatively repressible.

Explanation:

A control which occurs through repressor is known as negative control which may be inducible or repressible.

When a small molecule named as allolactose binds this repressor it leads to allosteric repulsion which removes repressor from the operator as a result of which RNA polymerase can start transcription. Allolactose is therefore known as inducer because it induces lac operon expression.

But here, the operator is active (induced) already so there is no need to induce the operon which means that it can only be repressed so that transcription could stop. So the answer is negatively repressible operon.

6 0
3 years ago
What are the functions of pharynx
bekas [8.4K]
There are basically 3 types of pharynx- nasopharynx, oropharynx and laryngopharynx.
The function of the pharynx are:-
1. To transport the food from mouth to esophagus. 
2. To warm, moisten and filter the air, before it moves to the trachea, and then to the bronchi, the bronchioles, the alveoli and at last to the lungs.
    Therefore, pharynx(or throat) is a part of both- digestive and respiratory systems.
3. It is also important for vocalization. 



5 0
3 years ago
Read 2 more answers
Poly" means many and "saccharide" means sugar. Why is
Nataly [62]

Answer: The name means many sugars, so polysaccharide meaning many sugars works for it.

Explanation:

5 0
3 years ago
How are interphase and mitosis different from one another?
seraphim [82]

Answer:

<em>Hi Todoroki here! UwU</em>

Explanation:

The key difference between interphase and mitosis is that interphase is the longest phase of the cell cycle in which cell grows and replicates its DNA while mitosis is a short phase of the cell cycle in which cell nucleus turns into two nuclei that bear identical genome as the original nucleus to produce two new cells.

<em>~Happy to help! ^^</em>

8 0
3 years ago
In mendel’s peas, plants homozygous for the recessive allele d are dwarfs. the dominant allele d determines the normal tall phen
Zolol [24]
So, recessive allele 'd' are dwarfs. 
The dominant allele is 'D' determines tall. 
All you have to do is try to cross the alleles together to get either a homozygous or heterozygous remain. So, you should be able to get Dd or DD. 
3 0
3 years ago
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