<span>An example of concentric contraction is doing a biceps curl. The curl exercise is targeting the biceps muscles on the front of the upper arm and only several muscles assist during the movement. Moreover, concentric muscle contraction is a type of muscle activation that increases the tension on a muscle as it shortens and this activation begins the process of muscle strengthening and hypertrophy. </span>
Answer: True
Explanation: So children and adolescents can and should “lift weights”, as long as it's done properly.
Answer: embryo
Explanation:
An embryo is the early stage of the development of the diploid cell called as zygote. It is formed by the continuous cell division and differentiation of the zygote. It is the unborn offspring which is in the state of development. In humans the embryonic state remains from second to eighth week after the process of fertilization. After eighth week the embryo is called as fetus.
According to the given situation, the six weeks of pregnancy is indicative of embryonic state.
46 chromosomes
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