The mass number, also known as an atomic mass number or nucleon number, refers to the total number of neutrons and protons (in a combination known as nucleons) in an atomic nucleus. It determines the atomic mass of atoms. However, while calculating the mass number, the small contribution of mass from electrons is ignored.
Mass number is equal to Number of protons + Number of neutrons
Mass number = 11 + 7 = 18.
Hence, the correct answer is 18.
The statement 'a crocodile-like animal is the ancestor of birds' is BEST supported by the information in the table (option A).
- Evolution refers to the biological process of descendence with modification.
- Evolutionary close species share functional and structural phenotypic features due to a same-origin during evolution.
- A crocodile is a reptile, and it has been shown that birds evolved from theropod dinosaurs (reptile).
In conclusion, the statement 'a crocodile-like animal is the ancestor of birds' is BEST supported by the information in the table (option A).
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The answer is artery.
A blood vessel with a thick layer of smooth muscle and elastic fibers is artery. Even though both artery and veins are smooth muscle and elastic fiber. The difference is veins have valves, while arteries don't.
A: Scientists have different opinions on its structure.
Explanation:
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Answer:
I d k really but my educated guess is A- The Sun has a structure similar to Earth's structure * even tho the suns structure is completely gaseous is similar to earth w the layers ii don't know
Explanation:
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