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Portrait of a Golden Retriever dog lying on its back on a bed with its ears raised up. The owner hands hug the dog head. Happy and calm pet. Funny dog on the bed.
Studio portrait of elderly couple posing on yellow background, senior handsome man and pretty woman embracing, smiling at camera
Love care. Affected woman. Feelings expression. Happy middle-aged lady holding hands forming heart shape gesture on yellow.
Drought affecting an agricultural field in the countryside. Parched sunflower field. Deliberately blurred background.
Factors Affecting the activity of enzymes: temperature, substrate concentration, pH, enzyme concentration

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