Answer and Explanation:
The steps of the sliding filament theory are:
Muscle activation: breakdown of energy (ATP) by myosin.
Before contraction begins, myosin is only associated with a molecule of energy (ATP), which myosin breaks down into its component molecules (ADP + P) causing myosin to change shape.
Muscle contraction: cross-bridge formation
The shape change allows myosin to bind an adjacent actin, creating a cross-bridge.
Recharging: power (pulling) stroke
The cross-bridge formation causes myosin to release ADP+P, change shape, and to pull (slide) actin closer to the center of the myosin molecule.
Relaxaction: cross-bridge detachment
The completion of the pulling stroke further changes the shape of myosin. This allows myosin and ATP to bind, which causes myosin to release actin, destroying the cross-bridge. The cycle is now ready to begin again.
The repeated cycling through these steps generates force (i.e., step 2: cross-bridge formation) and changes in muscle length (i.e., step 3: power stroke), which are necessary to muscle contraction.
Answer:
The correct answer is asthenosphere.
Explanation:
The Earth comprises four layers, that is, the crust, the mantle, the inner core, and the outer core. The magnetic field of the Earth is the amalgamation of the convection it attains from the Coriolis Effect and the outer core. The layer of the Earth where convection of the mantle takes place is the asthenosphere.
Answer:
Use the drawing tools to form the correct answer on the graph.
Graph the line that represents this equation:
Explanation:
Answer: Twenty five (25) of the chicks will be black.
Explanation: A cross between two heterozygous chicks (Bl/bl+) will produce four chicks; one will be Bl/Bl, two will be Bl/bl+ while one will be bl+/bl+.
A break down of the phenotypes is as follows:
Genotype ==> Phenotype
Bl/Bl ==> Black
Bl/bl+ ==> intermediate
bl+/bl+ ==> blue.
Since one out of four offsprings (1/4) is black, therefore if the two chicken produce 100 chicks, the number of chicks that will be black is 1/4 x 100 = 25.
See the punnett square for more information
