The ends of the actin filaments are anchored to the Z-line or disk.
The sarcomere is the primary functional unit of muscle fiber. It is flanked by a Z-band on each end with adjoining I-bands. The Z-band or disk is a dense fibrous structure composed of actin, α-actinin as well as other proteins.
Thin filaments or actin filaments are anchored at one end at the Z-band. Titin is connected to both the Z-band and the M-line. Thick filaments are attached in the middle of the sarcomere at the M-line.
An intermediary filament protein forms a meshwork from one Z-disk to the next across the myofibril. These networks are joined by actin through the protein dystrophin to the sarcolemma.
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Answer:
The answer is B and D which they have 23 chromosomes
Explanation:
It is called a <span>submarine </span><span>canyon...</span>
<span>Matter gets recycled in eco systems. In contrast to energy, which gets lost in an eco system, non living matter - nutrients - gets recycled as a result of the food chain and decomposition.</span>
Depressive disorder
Depressive disorder is an illness
which is characterized by persistent and intense feelings of sadness for long
periods of time. It influences an individual’s mood and behavior as well as
various physical functions such as appetite and sleep.This
disorder sometimes makes an individual to lose interest in activities they once enjoyed and have trouble
performing everyday activities. For the question given above, it is most likely
that Morris would be diagnosed with depressive disorder.
