essential amino acids.
the "essential" refers to it being necessary to derive them from the foods we eat, but in fact the amino acids that the body produces are just as essential to the proper functioning and health of our bodies.
Yes, classification system is still evolving together with our knowledge.
But, before changing the name (e.g. of a species) it is important to collect and gather a wealth of information in order to support that change. Classification system is still evolving. The reasons for the changes are DNA analyzes. It is the new way for discovering relation between organisms and put them in the right context (classification used to be based on morphological characteristics).
Change in classification can be shown in an example of fungi. In the 90s fungi classification included only phyla Chytridiomycota and Zygomycota. Now theyhave been classified mainly on the basis of characteristics of their sexual reproductive structures. So, there are 7 phyla now: Microsporidia, Chytridiomycota, Blastocladiomycota, Neocallimastigomycota, Glomeromycota, Ascomycota, and Basidiomycota
Answer:
Explanation:
Adductor muscles are those muscles which pulls the body part away from the midline of the body. It draws the body part to the extremities. These are found in various parts of the body such as human thigh bones such as adductor longus, adductor mugnus and adductor brevis. These muscles in the thigh helps in providing the flexibility and rotation.
In the thumbs there is adductor pollicis. In the toes there is adductor hallucis.
Answer:
B. Fire let humans increase their energy use tenfold
Explanation:
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