Answer: The correct answer is salt.
A compound is a chemical substance which is formed by the combination of two or more elements, joined together in a fixed proportion.
Salt is a chemical compound which is formed by the reaction of an acid with a base. For example- NaCl ( sodium chloride) is a common salt. It is formed by the combination of two elements. Therefore, salt is a compound.
On the contrary, Phosphorous (P), sulfur (S) and Oxygen (O₂) are composed of a single element. Therefore, they are not compounds.
Thus, the correct answer for the compound is Salt
.
The respiratory and circulatory systems are close together by working and relying with each other. The respiratory system imports oxygen from the air and that oxygen goes through out the body by the circulatory system pumping the oxygen. That creates carbon dioxide, which the respiratory exports from the body.
Answer:
true
Explanation:
due to allele sharing and the interaction between dominant and recessive phenotype . the melanin description gene is dependent on the pairing between the mating organisms. similar to fur colour in other mammals
Answer: USDA registration for research institute.
Explanation:
United States Department of Agriculture ( USDA) is a federal agency in the United States which was founded by Abraham Lincoln. This agency plays a major role in the regulation and maintenance of farming, ranching, and forestry industries, as well as regulating aspects of food quality & safety. The agencies established under the USDA includes:
--> Agricultural research services
--> Farm service agency and
--> Animal and Plant health inspection service.
Through the Animal and Plant inspection services, the USDA administers the Animal Welfare Act (AWA) which purposefully excluded laboratory strains of rats and mice because they are breed specifically for research purposes.
