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In any shape, all internal angles must add up to 360°. If this was a regular nonagon (all internal angles are the same), each internal angle would be 360÷9=40°. We know that each internal angle is different from its neighbour by just 1°, so the internal angles must  be 36°, 37°, 38°, 39°, 40°, 41°, 42°, 43° and 44°. (Check they all add up to 360°!) This means the answer to your question is 38°.

Maths

Suppose the measures of the interior angles of a convex nonagon are nine numbers each separated by a value of 1 degree from its neighbors what is the measure of the third smallest angle?

The rule gives us the general formula for any term. So to find the 6th term, you just need to work it out for when n=6. In this case it would be (3×36)-(2×6)+6=102.
I hope this helps!

Can someone help me find the 6th term for this rule: 3n^2-2n+6

Thank you in advance

They all supported the idea that the Earth orbits around the Sun, which opposed the view of the Church at the time, which claimed that the Earth was at the centre of the universe and that everything else was perfect and unchanging. Copernicus developed the first mathematical proofs that the Earth was not at the centre of the Universe, Kepler supported this, and then Galileo observed sunspots, which proved that the heavens were not perfect, but all three were prevented from spreading their theories by the Church.

History

Copernicus, Galileo, Kepler, and Newton all supported which idea from the Scientific Revolution?

Red is dominant, white is recessive, so if the offspring (F1) have white eyes, they are double recessive, so must have inherited a white eye allele from each parent. So, the female parent must be heterozygous- with one red and one white allele

Biology

A test cross was performed between a red-eyed female fruit fly and a white-eyed male fruit fly. If some of the offspring have white eyes, what is the genotype of the female parental fruit fly?

Yes, they are expressed in all somatic cells, but in general they only make a difference to the characteristics of certain tissues. If a cell didn't contain all 23 pairs of chromosomes, it wouldn't be viable so it would die.
I hope this helps!

Are the sex chromosomes (for humans X and Y ) expressed in all somatic cells? Or just those cells of organs that are related somehow to sexual phenotype (primary and secondary sexual characteristics)?

mRNA is directly copied from the DNA, so carries the genetic information out of the nucleus, into the cytoplasm. It then binds to a ribosome, which is a combination of rRNA and protein. tRNA's are bound to specific amino acids, and deliver them to the ribosome. Complementary codons (on the mRNA) and anticodons (on the tRNA) match up, which enables the correct sequence of amino acids to be combined by the ribosome. (Certain codons, 3 base pairs, code for specific amino acids). So, all three types of RNA are required for translation to occur.
I hope this helps!

How do mRNA, tRNA and rRNA work together in translation to build protein?

The glomerulus is a collection of capillaries in a nephron of the kidney. There are small gaps between the cells, meaning water and small molecules (basically everything except blood cells and large plasma proteins) are forced out and into the proximal tubule. The reason the majority of the contents of the blood is forced out it that the arteriole leaving the glomerulus (efferent arteriole) is highly contracted, so the blood pressure inside the glomerular capillaries is very high. This process is vital in the maintenance of osmotic pressure in the blood and removal of toxins such as urea. It is also important to note that this is just the first step in a very complex system as the filtrate passes through the kidney, which ensures that glucose, ions and water are kept at the correct concentration in the blood.

How does glomerular filtration occur?

The human digestive system is very complex and involves a lot of organs, each with their own job.
The basics are:
In the mouth, the teeth cut the food into smaller chunks, and the saliva(basic) begins to break down carbohydrates
In the stomach, it is highly acidic, and the organ contracts and relaxes, churning the food along with the gastric acid. It also contains enzymes which begin to break down proteins.
(Making the food smaller is really important as smaller things have a larger surface area to volume ratio, so enzymes can access a larger amount of it at any one time)
The small intestine contains a lot of enzymes(made in the pancreas) and digestive juices such as bile (made in the liver), and is where much of the digestion (releasing the useful nutrients from the food) occurs. It is also where much of the nutrients are absorbed into the blood stream (villi give it a very high surface area).
The large intestine is where water and minerals/salts are absorbed, and where feces begin to be made.
I hope this helps!

How does the human digestive system change food into nutrients?

To be able to answer this question properly, I would need to see the diagram, but I assume it's the lock and key theory.
This involves the substrate binding to the enzyme (with a complementary binding site), the enzyme catalysing the reaction, creating a product, and then the release of the product from the active site as its shape doesnt fit as well as that of the substrate. I hope this helps!

The diagram below shows one theory of enzyme actionDescribe and explain what is happening at each stage. What enzyme theory does this represent?

I assume you mean in Photosynthesis?
Oxygen is produced in the light dependent reaction, but it is not a useful product. It is made when water is split, releasing protons, which are useful in the production of the key products NADPH and ATP, which are then used in the light independent reactions (the Calvin cycle).

Physics

Can we consider oxygen as a product of light dependent reactions?

This is a short series of videos covering some basic concepts you need to be comfortable with to be successful in GCSE Chemistry, including atomic structure and states of matter.

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