The scientific method- Form an hypothesis
conduct an experiment to test that hypothesis
So yes researchers could review his experiment and his theory to detect any possible flaws.
Scientists do this all the time
Gastric juice helps to convert food into simpler substances
the main function of the teeth is the chewing of food, breaking down food into very small pieces
the two components of digestive system is pepsinogen and mucous
oesophagus is the food pipe. by this the food passes from mouth to stomach through regular contraction and expansion
because the bread (starch) converts into carbohydrate by the enzyme salivary amylase
chapati is the instant source of carbohydrate
in mouth
cellulose
salivary gland
in liver
ingestion
by taste buds
liver
pseudopodia
:)
Like "fossil fuel" or "respiratory system"?
D. only in the nucleus. DNA or (deoxyribonucleic acid) is what makes you... YOU! All of your traits (Hair color, Eye color, The shape of your ears, Cancer risk, SKIN COLOR, etc.) But DNA is only housed in the nucleus of the cell, so the nucleus is the only place the transcription of the melanin gene could take place.
I believe the answer is descriptive science
Descriptive research aim to produce a data that describe a condition. It doesn't trying to analyze the data and find correlation or causation. In this case, the scientist trying to make catalog of new species. The result should be a list that could describe the species of the species. There is no hypothesis or variable in this research.