Answer:
minerals (calcium and phosphorus)
They would have had to have received the gene from both their mother and father. This gene is carried on the X chromosome and is only shown in females when it is present on both.
When two convergent boundaries collide, especially in the ocean, an Island arc is formed.
When these two convergent plates collide, the older plate which is denser subducts beneath the younger plate. As the subducting plate is pushed deeper into the mantle, it melts. The magma this creates rises and erupts. This forms a line of volcanoes known as an island arc , with considerable earth quakes created.
Examples of island arcs include Japan, Indonesia, the Phillipine Islands and the Aleutian Islands of Alaska.
Answer:
Excitation is the process in which action potentials in the nerve fiber lead to action potentials in the muscle fiber. There is then a rapid fluctuation in membrane voltage at the motor end plate, called the end-plate potential. Areas of the sarcolemma near the motor plate have gates that open, moving ions, which causes the action potential that excites the muscle fiber. The process begins with a nerve signal stimulating a voltage-gated calcium ion channel to open, allowing the ions to enter the axon terminal. The ions stimulate the release of acetylcholine into the synaptic cleft.
Answer:
D: all of the above
Explanation:
Autotrophs have photosynthesis so they are like plants they make their food by photosynthesis they are base of the food chain because other animals eat it
