The Answer -
A. The amount of land available for lumber production decreases.
Do to the Urban development there is fewer land and less trees to grow and cut down for lumber, which can lead in a decrees if production for lumber.
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Answer:</h2>
Blue winged warblers are the popular species having distinct Buzz Buzz sounds. They are most likely to live in bushy fields and known as worm eater. Their favorite food is insects and spiders.
As the springs arrives, it will affect the blue winged warbles in a very positive way. They will be more likely to reproduce in spring. They will also find more food and shelter in spring.
Answer:
trachea is not part of that system, that's a different system.
Explanation:
Enzymes are biological catalysts. Catalysts work by lowering the amount of energy required to set off a chemical reaction.
Answer:
A- Acetylcholine is released by axon terminals of the motor neuron.
Explanation:
The general mechanism of muscle contraction can be explained as follows:
a) The action potential which is generated, travels along the motor nerve to its ends on muscle fiber (or motor end plate) at the neuro-muscular junction.
b) The nerve endings then secrete small amounts of neurotransmitter called acetylcholine.
c) The actylecholine binds to the receptors on the membrane of muscle fiber and opens the voltage gated sodium channels.
d) Opening of these channels leads to flow of large quantities of sodium ions into the muscle fiber which ultimately results in initiation of action potential in muscle fiber.
e) This action potential depolarizes the fiber including the T-tubules, triggering the release of calcium ions from sarcoplasmic reticulum.
f) The calcium ions thus released initiated the process of muscle contraction.
