The 3 reasons plants and propagated asexually are:
1. To preserve the genetic characteristics of a particular plant
2. Propagate plants it do not produce viable seeds for example: (bananas, pineapple, seedless grape etc.)
3. Produce seed that is difficult to germinate or it has a very short.
Answer:
The organ bath is a traditional experimental set-up that is commonly used to investigate the physiology and pharmacology of in vitro tissue preparations.
Explanation:
because my mom told me
Answer:
4, 3 5, 1, 2.
Explanation:
The events of muscle contraction begins from the presynaptic neuron, which cause the influx of Ca+, and the release of acetycholine neurotransmitter into the synaptic cleft.
The Ach, binds with the receptors in the sarcolemma, leading to opening of Ligand gated Na+ channels. Therefore Na+diffuses in, causing depolarization, and propagation of action potential along the sarcolemma spreading to the T-tubules.
This is followed by opening of Calcium channels leading exist of Ca+ from the sarcoplasmic reticulum.
The Calcium binds with the troponin, and Tropomysoin exposed the myosin binding sites on the actin filament.Thus cross-bridge is formed by the myosin head with thin filaments which shortened the sarcomere, leading to contraction of muscle fibres.
The layer is the Mucosa layer.
Hope this helps!
-Payshence xoxo
ORh+
AbRh+
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