Answer:
<em>The correct option is D) In Y</em>
Explanation:
Schleiden and Schwann, are known best for bringing up the cell theory. Although there are other scientists such as Robert Hook who are known to have contributed to the cell theory but Schleiden and Schwann are considered to be the pioneer of the cell theory.
Matthias Schleiden was a botanist which means that his expertise was in studying plants. Theodor Schwann was a zoologist which means that his expertise was in studying animals. Hence, Theodor Schwann was the scientist who studies animals and so option, D is correct.
<span>Jul 7, 2008 - Ok, this includes "hierarchy structural levels biology." Principles in Biology ... What is the highest level in life's structural hierarchy? - Yahoo .</span><span>The structure of living organisms including those of entire populations and ... is life?'. In the biological sciences, the following hierarchical levels are recognized: ...</span><span>
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Answer;
Allergic contact dermatitis.
The reaction may be classified as allergic contact dermatitis.
Explanation;
-Contact dermatitis is a red, itchy rash caused by direct contact with a substance or an allergic reaction to it.
-Allergic contact dermatitis is a manifestation of an allergic response that is caused by contact with a foreign substance.
-This causes the body to release inflammatory chemicals that can make the skin feel irritated and itchy.
Answer:
Sarcomere
Explanation:
The sarcomere is the smallest contractile unit of muscle. It extends from one Z disc to the next and therefore, is the region between two consecutive Z discs. It contains an A band flanked by half an I band at each end. Contraction of a muscle fiber occurs as the sarcomeres within the myofibrils shorten. During the shortening of the sarcomere, the thin actin filaments slide past the thick myosin filaments and approach one another. The resultant shortening of the I band and complete disappearance of H zone cause contraction of muscle fiber.
