Answer:
Independent: Light intensity
Dependent: Rate of photosynthesis
Explanation:
The independent variable is the variable that changes, to determine if it has an effect on something. 
The dependent variable is the variable that's measured.
Hope this helps!!
 
        
             
        
        
        
Answer:
The tendency of water molecules to stick to other molecules also allows water to dissolve substances that are important to life, such as ions, DNA, and many proteins. This is necessary for life because molecules that have been dissolved in water or another polar solvent interact with each other more readily.
 
        
             
        
        
        
Answer:
Option-A
Explanation:
Penicillin is an antibiotic drug that is derived from the fungal species of Penicillium molds especially the<em> Penicillium notatum</em>.  The penicillin acts by disrupting the formation of the cell wall and thus prevents the growth of the bacteria.
The discovery of penicillin was accidental when he was studying the petridish of staphylococcus and he found that due to avoidance while the experiment, molds grew in the petridish.  The area around the mold was clear and clear rings without the bacteria were easily observed. This lead to the discovery of the penicillin compound.
Thus, Option-A is the correct answer.
 
        
             
        
        
        
Category of AI that attempts to emulate the way the human brain works neural network.
A neural network is a biological neural network made up of biological neurons or an artificial neural network used to solve artificial intelligence (AI) problems.
Artificial neural networks model biological neuron connections as weights between nodes. An excitatory link is represented by a positive weight, whereas an inhibitory connection is represented by a negative weight. Each input is given a weight before being added together. 
These artificial networks can be applied to adaptive control, predictive modelling, and other tasks where a dataset can be utilised to train them. 
To learn more about artificial intelligence, refer this link brainly.com/question/28448080
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