I believe this is survival of the fittest. so because of the drought there was no more food supply for the long necked tortoises thus causing them to die off and not be able to reproduce and pass of their gene for long neck. where as for the short neck tortoises there was enough food for them to survive and thus being able to reproduce and pass on their gene for short necks.
Acetylcholine<span>Distributed throughout central nervous system. Involved in arousal, attention, memory, motivation, and movement. Involved in muscle action through presence at neuromuscular junctions. Degeneration of neurons that produce Ache is linked to Alzheimer's disease. Too much ACh- spasms, tremors, too little- paralysis or torpor.</span>
Answer:
ability to rust, ability to burn
Explanation:
Ability to rust and burn are both chemical properties cuz both require reacting with oxygen/moisture to form.
Shining and bending are physical properties cuz you can just observe them without any reaction.
https://chem.libretexts.org/Courses/University_of_British_Columbia/CHEM_100%3A_Foundations_of_Chemistry/03%3A_Matter_and_Energy/3.05%3A_Differences_in_Matter%3A_Physical_and_Chemical_Properties
Answer:
no i don't know the answer