Answer: b. Muscles
A metazoa is a division of animal kingdom that includes all animals expect protozoa and sponges. Metazoa division includes multicelluar animals, which exhibit highly differentiated cells. They have muscular and nerve system and well coordinated tissues and organs. Locomotion requires a coordination activity of muscular, skeletal and neural system. It is mainly achieved by contraction and relaxation of muscles that occurs due to specialized muscle proteins named as actin and myosin which receives signals from nerves.
Hence, locomotion in metazoa is due to contraction of muscles.
Answer:
Explanation:
Water's extensive capability to dissolve a variety of molecules has earned it the designation of “universal solvent,” and it is this ability that makes water such an invaluable life-sustaining force. On a biological level, water's role as a solvent helps cells transport and use substances like oxygen or nutrients
Answer:
B. Generalizable
Explanation:
Generalizable means something's ability to be applied to a general or wide group. So, if something is generalizable that means that it is applicable to a wide group of things outside of the initial study. Thus, B is the correct answer because it is the only vocab word that properly describes how widely applicable the study is.
One of the best ways to generalize a study is to use random or probability sampling. This helps ensure that the findings of the study can be used by others in different situations.
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Answer:
c. It is a systemic inflammatory disease.
Explanation:
One of the main characteristics of rheumatoid arthritis is that is a systemic inflammatory disease. This disease can affect the entire body and is not just localized to the individual's joints. In many cases the disease has been known to attack an individual's skin, eyes, lings, heart and even the blood vessels within the individual's system.