Answer:
SURGERY.
Explanation:
Based on classification by the United States department of Agriculture, Category C, animals are exempted from procedure that can inflict pain, or distress.in addition any procedure that involved the use of analgesics (e.g. surgery) should not be performed on the animals.
Besides, regular procedures, of administration of injections and taken blood samples(preparation for surgery) which may produce minimal discomfort are also classified in this category.
You are not correct it is d
The correct answer is polarity. Water's polarity<span> makes it an excellent solvent for salts, like sodium chloride, as well as other substances required by cells to carry out metabolic processes.Water is known as universal solvent as it dissolves most of the substances. This is because of it chemical composition, a water molecule has one electronegative oxygen atom and two hydrogen atoms as its constituents.</span>
Answer:
Change occurs in the heredity characteristic of living organism over time.
Explanation:
Change occurs in the heritable characteristics of living organisms with the passage of time is known as evolution. Evolution consist of three basic principles which are variation, heredity, and differential fitness. The organisms evolved with the passage of time due to change in the environmental conditions which able them to survive in that harsh climatic conditions and those which is not evolved can't survive and in the end extinction occur.