<span>1) Which of
the following is a possible formula unit? PbO -  Li2B  - Al2Pb3
-  ClO
The correct answer is PbO which is Lead(II) oxide – also known as Lead Monoxide
– which is an inorganic compound. It is an Amphoteric oxide which can be found,
in modern use, in industrial glass, ceramics, or computer components, due to
its crystal structure. </span>
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<span>2) What is
the formula of a compound formed between iodine (I) and calcium (Ca)?
Calcium will always give two electrons. but iodine can receive only one. Therefore
two atoms of iodine react with one atom of calcium to give CaI2. Their bond is
an ionic bond. 
Ca 2+ + 2I 1- --> CaI2</span>
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<span>3) What is
the resulting formula unit when strontium (Sr) and phosphorus (P) bond?
Strontium (Sr) wants to lose two (2) electrons, and phosphorus (P) wants to
gain three (3). By using the criss-cross method, if you flip the 2 and 3 to the
opposite elements, you will end up with the formula Sr3P2.</span>
 
        
             
        
        
        
The field of study that seeks to enable machines to simulate human abilities is known as <u>artificial intelligence(AI)</u>.
Artificial intelligence (AI) would be the simulation of human intelligence by technology, particularly computer systems. For creating and refining machine learning algorithms, a foundation of specialized hardware as well as software is needed.
Large volumes of labeled training data are ingested by AI systems, which then examine the data for correlations but also patterns before employing these patterns to forecast future states.
AI is capable of jobs that humans are not. AI tools frequently finish tasks fast and make few mistakes.
To learn more about machines here
brainly.com/question/15392659
#SPJ4
 
        
             
        
        
        
There was two of the same question, but here is the answer again with a little more depth.
D - spine alignment and foot size.
It was only the late Australopiths that had an S-shaped spine. This allowed for them to be bipedal, that is, the ability to walk on two legs as we do. This is because the S-shaped spine allowed them to balance when they were standing. The late Australopiths also have shorter and less flexible toes. These smaller, but sturdier feet made pushing off the ground much easier - aiding in their bipedalism. 
        
                    
             
        
        
        
<span>Answer:
Bacterial DNA is directly exposed to the cytoplasm, which has the ribosomes on which protein synthesis takes place. As the mRNA molecule proceeds for synthesis, ribosomes immediately attach to the free 6' end of the RNA transcript and begin translating it into protein.</span>
        
             
        
        
        
Acetylcholine alters the force or energy of muscle contractions