Answer: different organisms have different chromosome numbers
Explanation: eukaryote cells have more than one chromosome
chromosomes are present in most cells all the time (not in erythrocytes), but cannot be visualised except during telophase of mitosis or meisosis
bacterial cells don’t have a nucleus
It reduces the amount of harmful rays released by the sun and It increases the levels of carbon dioxide in the air.
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Answer:
Hemoglobin is an iron-containing protein present in the blood that functions for transportation of oxygen to different body cells..
Each hemoglobin molecule have tetrahedral structure consist of four heme groups surrounded by a globin group. Heme, is composed of porphyrin (ringlike organic structure) which is attched to an iron atom. There are four iron atoms in each molecule of hemoglobin that binds with four oxygen atoms and globin carry two linked pair of polypeptide chain.
The oxygen reversibly binds with the polypeptide chain and the process called oxygenation.
ANSWER
Mixture
Explanation: the air is composed of nitrogen and oxygen
A team of scientists has consistently gotten the same unexpected results from a set of experiments. Then "Peer review of the scientific methods and data analysis" may helps the scientists to ensure the reliability of the results.
<u>Answer:</u> Option D
<u>Explanation:</u>
The roots of achieving unexpected results lie or depend on scientific methods used and analysis of data performed for acquiring results. Therefore when experiment results into unexpected readings researcher need to give a review of entire method and analysis.
Although rest other points like publication of results, discussing with friends and family members or removal of inconsistent data may or may not help depends upon conditions but reviewing helps as observed in many cases , because one must have performed unintentionally or intentionally an error while going through methods.
