Answer:
Cross-bridges would form in the absence of an action potential from a motor neuron.
Explanation:
The injected calcium ions would bind to troponin. Troponin would make tropomyosin move away from the myosin-binding sites on actin. The presence of free binding sites on the actin would be followed by the contraction cycle. This would include hydrolysis of ATP to energize myosin heads and binding of these heads to actin to form cross-bridges. Therefore, cross-bridge formation would occur without any action potential if calcium ions are injected directly into the muscle.
Answer:
9. C
10. D
11. B (Im not sure about this one but I think its right)
12. Cant see 12
13. C
14. D
Explanation:
Answer:
Answer. Biotic factors are the living things in an ecosystem so they do not recycle. Abiotic factors are the different physical and chemical components available like temperature, air, water, minerals, rocks,and PH. Not ll of them are recycled.
Answer:
I believe that he forgot about that really big cultural, around the world thing, where all of the kids dressed like they were from their countries and they brought food from that country as well.
All plants are multicellular, All plants are eukaryotic, All plants are autotrophic, and All plants need sunlight.
