Answer:
2.5271%
Explanation:
The percent error is defined as;
(error/actual value) * 100%
In this case the error will be;
27.7cm - 27.0cm = 0.7cm
The actual value is 27.7cm since it is the one specified by the manufacturer.
The percent error in the worker's measurement is thus;
(0.7cm/27.7cm) * 100 = 2.5271%
Answer: B
Explanation:
A - not correct since polypeptide chains are formed in ribosomes which exist in the cytoplasm
C. not correct -protein function is determined by DNA
D. not correct - 3 nucleotides aka a codon is encoded into a single amino acid.
Answer:
20 million years
Explanation:
If we have a neutral mutation rate of one mutation per 5 million years, then the total of eight mutation between the two different species would be 20 million years. This is because both species will have 4 mutations in those 20 million years, so combined, both by 4, will have 8 mutations between them. So few mutations on so much time will result in two species that are very similar to each other even after 20 million years of evolution, even making them hardly distinguishable, especially if it comes to defining fossil records from them both. A nice example of this are the members of the felidae (cat) family, which are all very closely related, and are almost identical, thus making it extremely hard to distinguish two species of the same or similar size by their fossils.
The answer is C. Chromsomes make up part of the DNA and carry the information needed to code for the DNA's proteins.
Answer:
Endocardium
Explanation:
The endocardium makes the innermost lining of the wall of the heart. It is present over the thin layer of connective tissue. The function of the endocardium is to provide a smooth lining for the chambers of the heart. The valves present in the heart also have endocardium. The dense connective tissue of the heart valves is covered by endocardium.
The presence of the smooth endocardium made up of endothelium reduces the surface friction as blood passes through the heart. The endocardium of heart chambers is continuous with the endothelial lining of the large blood vessels that are attached to the heart.
